Sounds like you are in that group! What particular task is completely ruined by having a slower throughput SSD? (if buying the new one) or conversely, what task is ruined by having a slightly slower processor? (if buying the old one) Computers are way off into imaginary performance for the majority of users, disk throughput of that magnitude is way down on the things that impact performance for the vast majority of people (thinking 99.999% here), and if that really was the killer limit just buy the older one, or not the absolute smallest storage SKU..... so many ways to avoid this imagined "dealbreaker" of yours. You're just adding to the FUD with more of the nonsense:
"I WANT EVERYTHING BETTER AND CHEAPER AND WONT BUY ANYTHING LESS", ok... don't buy it if it offends you so much? why the need to broadcast this ridiculously individual corner case detail to the world? It isn't some mandatory purchase, the choice is yours, if the value proposition isn't there then just move on.
Forums are full of people big on talk and shy on actually doing, "apple specific" forums are just the same as seen on here with people endlessly discussing test equipment they were never in the market to buy.
Well unlike a lot of people, we aren't buying these machines to have a wank over. They really do get the shit hammered out of them doing actual real work. In my case I'm running a full stack of compilers on it and doing RAW photo editing and 4k video editing on a regular basis. All of that is very SSD and CPU intensive.
If you compare turnarounds on my current compiler workload you will see what I mean:
Ryzen 3700X desktop: 54s
MacBook Air M1: 23s
MacBook Pro M1 Pro: 15s
Now do that 200 times a day and you see where it adds up when I get paid to complete jobs in set time windows.
In the case of the M2, a lot of people will be buying them for the video and image workflows because they are the most affordable pro-line portable computers out there which run the Apple platform specific tools that people want to run. Like Final Cut Pro etc. If you are currently running an M1 and you want that 20% gain and you buy a M2 and find it's not there then you're going to be pissed.
The point is if you get pissed now, it makes people aware of it, negatively affects sales at Apple and they will never make that mistake again. This leads to excellent priced and performance entry level machines, unlike the whole fucking PC market which is a shit show because there's such a diversity of trash and no way to get traction against it.