Well, what one person has seen can differ from what someone else has seen. Unless one has seen and noted all relevant data, and formed a study on the subject, etc.

But you have to be able to apply logic to your reasoning. And what logical reasoning could there be for a higher digital ratio for games that "only" sell 100k in its first month?

Over a longer period of time, games being out of stock could definitely affect it. Same thing for greatly discounted PS+ deals. File size could also be a factor.
But we're specifically focusing on early shorter periods like opening week, or opening month. Tekken 7 did not suffer from supply shortages during it's first month. And yet out of 100k people, 21,5% chose to buy it digital. There were no digital sales at that early stage, or shortages. And Tekken 7's file size is actually a whooping 45GB for PS4: https://www.psu.com/news/tekken-7-ps4-file-size-is-a-shocker/

Well there's really no conceivable correlation between high or low FW/FM sales and digital ratio. If a game has a high digital ratio, it's because of the factors we mentioned, like availability, or convenience, etc.

Here's an anecdotal story though. Even though I decided to get a physical copy of MHW, because some of my friends already got it and started playing, I had second thoughts about it to the point where I delayed my order for a couple of days because I didn't know if I wanted to wait 5+ days for Amazon to ship it to me, when I could download it and start playing with my friends right away. Why the rush? Well, unlike something like a fighting game, in Monster Hunter you progress with things like levels and craftable and upgradable equipment. I don't think it's going to be particularly fun going on hunts with my friends if they're significantly more powerful than the boss I'm currently facing, and already have the best gear. That's what I was considering at least.

But something Noobie mentioned above:
"With capcom saying they have 30% digital sales worldwide and 40% of the shipped and digital sales are from Japan"

If this is accurate, just about every third person who bought the game, bought it digitally.
This means that in some areas, the ratio was below 30%. And in some areas it must have been higher than 30%.

Areas where the game was in short supply would be more likely to be on that higher end of the spectrum.
I don't know if 32,5% is unprecedented for an opening week, but I think if Tekken did what it did without shortages, I wouldn't be shocked if MHW did more with a 95% sell through rate.
However, I don't know how off Famitsu tend to be with their estimates. But this seems to fall in line with Capcom's statement.

What's EDF?

I'm not certain by any means that a 32% digital ratio is likely for MHW. But what I am saying is that no one should think that FW/FM sales have any sort of impact on the digital ratio. People's tendencies do not change if FW/FM sales change. What can affect it is what type of game it is, availability, price, etc.

But yeah, it seems to fall in line with Capcom's "30% digital ratio" comment. I hope we get definitive confirmation soon.