It was a rhetorical question, but sure, if there's something to discuss :D

I'm telling you that negative cliff will come...

Based off software prediction it feels like BOTW2 is not set for this fiscal year

Ever since they undershot their forecasts in 2018 Nintendo have been extremely conservative to the point of blatantly lowballing their shipment forecasts for both hardware and software. It's better to adjust up than down after all.

An example is Monster Hunter world we know according to the leaks that the PS4 sales were  8.7 million 7 months ago but wikipedia has them at 3 odd million also a lot of later known milestones like reaching 10 million are hidden in the VGChartz database, because Sony updates are usually milestone declarations they were put in the comments pages  rather than replacing the old database numbers with the announcement date and an asterix, so there are a number of titles way over 10 million that show numbers half that or even less. now the reasoning that they aren't exact numbers and include sold over 10 million or have plus at the end may have mattered years ago but not now when Vgchartz no longer collects it own software numbers. rather than leaving the numbers to stagnate it makes sense to replace them with more update figures even if they are of a more general nature its not like the old numbers are correct to the last digit anyway.

The tie at 10th place threw me off. So yeah, 11 games according to that list.

I also agree the list is suspicious on closer examination. Several of those 10+ million sellers have unreliable sources. So there is the chance that there are actually fewer than what's listed. So if we knock off the games, it lowers the number to 5 games.

Yes, I know PS4 sold 1.5 billion+ software. My post already addressed why this is irrelevant. But it seems you accidentally cut that part out. So let me repost it here: "It doesn't matter if more games have sold on PS4 than Switch, Switch has Nintendo as a publisher. PS2 had over 1.5 billion games sold on it, only three of those sold above 10 million." That also adds to my doubt that PS4 had more than 5 games above 10 million, as Playstation platforms aren't known for having many 10m+ games, despite generally having high total sales.

I mean, if you have sources that say otherwise, by all means post them.

The use of the PS2 to judge the likelihood of the number of PS4 or other later consoles meeting a 10 mill sales threshold is a poor choice. historical context is important because just like the world industry doesn't remain stagnant and the sales of individual games inclusive of whether or not they meet the arbitrary threshold of 10 million aren't locked into some unalterable pattern that's tied to the total number of games sold.

What we do know is sales for the top selling titles have grown on PS4 1st party sales especially and those games when compared to PS3 games sitting at or near a similar ladder position have quite often  sales 2 or 3 times the level and in some case more and that is a far better indicator of what direction any data not included would go. 

My intention with this post was not to invalidate your point, but to provide some additional context. Besides that, I think that the difference between revenue and unit sales IS important especially when talking about the demand for digital vs. physical games. It might not matter for shareholders where revenue is coming from, but for gauging the demand for digital games on switch this metric is definitely a useful datapoint.