Except the are examples where this is false, MK8 was on WiiU and released early on NSW yet performed just fine you can argue that the audience differs but then that contradicts your PS5 argument as the audience can differ as well.

A number of games ported in fact have done fine look at TLOU on PS3 and PS4 both platforms would have the same audience yet different outcome. Or if you think it is a regional thing Miitopia as well would have the same audience as Switch as on 3DS yet is performing in a comparable manner on both platforms currently it is better.

PS4 version of VIIR already underperformed in itself and if the PS5'S hopes of sales were double dipping consumers that further leans into his stance of a big under performance of a franchise that once rubbed shoulders with the likes of MH and DQ sales. 

This is not a good comparison.

MK8 Switch does not have a free upgrade for Wii U owners.

Switch is a portable.

Switch has a highly distinct userbase from the Wii U.

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In regards to decline of FF, all the data you need is in 2020s release. This free upgrade for existing owners doesn't add much to this narrative and has no examples of free upgrades to be compared to.

What about my other comparisons I mentioned that did better than the original?

These aren't the only examples either, the free upgrade is what you are saying is the reason for VIIR's underwhelming performance at retail yet it does not really change the point he made because the prior version performed below expectations at the time an excuse was given that it was because the rest of gen 9 was coming. So for the PS5 version to be impacted by the upgrade basically furthers his point of an underperformance as not even 100k at retail for a mainline game. 

The other examples are also bad.

TLOU had no free upgrade. The PS4 was not backwards compatible. TLOU was a much bigger success than FFVIIR on its base platform and had better legs which continued on PS4. PS4 also absorbed marketshate from Xbox and sold 35m more than PS3 which means it exposed far more people to the game.

Miitopia on Switch is a different game from the 3DS, right? It's not a 1:1 remaster

I don't understand your last paragraph 

So few switch games in the top 10, doomed

We can bypass the free upgrade part by subtracting what those games sold on the prior version to what the new version eventually sold and in the case of the games I mentioned MK8 went on to well outperform the original to a different audience with additional sales while TLOU also did the same with the same audience so no the comparisons are fine and a free upgrade still doesn't debunk his point as new audiences or not those games still reached new people VIIR looks set to not.

PS4 sold more than PS3 much later on, before it got to that point the PS4 version of TLOU had already passed the PS3 version. FFVIIR not having legs that continues on is part of the point the whole project in the region has hugely underperformed even when you account for the free upgrades.

Miitopia is the same game the Switch version only adds new options at the Mii creation. 

Xbox Series had a good week. I heard Xbox Series was in low stock too.

Supply shortages really weighing down the Switch and PS5.

Is this the first time XS has outsold PS4 in the weekly Famitsu?

Top 30: https://nintendoeverything.com/famitsu-software-sales-6-7-21-6-13-21-top-30/

1. [NSW] Game Builder Garage – 71,241 / NEW
2. [PS5] Final Fantasy VII Remake Intergrade – 20,889 / NEW
3. [PS5] Ratchet & Clank: Rift Apart – 14,663 / NEW
4. [NSW] Miitopia – 14,579 / 147,402
5. [NSW] Ring Fit Adventure – 13,507 / 2,627,908
6. [PS4] Ninja Gaiden: Master Collection – 12,210 / NEW
7. [NSW] Monster Hunter Rise – 11,951 / 2,257,335
8. [PS4] Guilty Gear Strive – 11,722 / NEW
9. [NSW] Minecraft – 11,661 / 1,995,228
10. [NSW] Momotaro Dentetsu: Showa, Heisei, Reiwa mo Teiban! – 9,802 / 2,223,507

11. [NSW] Mario Kart 8 Deluxe – 8,596 / 3,871,249
12. [NSW] Super Mario 3D World + Bowser’s Fury – 8,561 / 776,315
13. [NSW] Super Smash Bros. Ultimate – 6,577 / 4,305,842
14. [NSW] Ninja Gaiden: Master Collection – 6,574 / NEW
15. [NSW] Animal Crossing: New Horizons – 5,549 / 6,795,602
16. [NSW] Super Mario Party – 5,262 / 1,909,313
17. [NEW] New Pokemon Snap – 4,796 / 239,890
18. [NSW] Clubhouse Games: 51 Worldwide Classics – 4,710 / 725,003
19. [NSW] Splatoon 2 – 4,027 / 3,880,613
20. [NSW] Jack Jeanne – 3,931 / 25,518
21. [PS4] Resident Evil Village – 3,767 / 183,253
22. [PS5] Guilty Gear Strive – 3,547 / NEW
23. [NSW] Pokemon Sword/Shield – 3,532 / 4,063,641
24. [NSW] Rune Factory 5 – 3,429 / 125,632
25. [NSW] Dragon Quest XI S (New Price Version) – 2,051 / 104,863
26. [NSW] Famicom Detective Club – 2,015 / 19,504
27. [NSW] Fitness Boxing 2: Rhythm & Exercise – 1,982 / 108,902
28. [NSW] Zelda: Breath of the Wild – 1,951 / 1,824,086
29. [PS4] Biomutant – 1,827 / 30,292
30. [PS4] Judgment (New Price Version) – 1,771 / 22,526

NS - 22

PS4 - 5

PS5 - 3