Maybe they feel the same about Wine as I do about WSL.
You can argue that the my-thing-wrapped-inside-your-thing increases exposure to my-thing and that's a net good outweighing any other factors, but you can just as validly argue it helps divert from actual adoption of my-thing and facilitates never moving from your-thing, since no one has any actual empirical study, it's all just feelings and beliefs.
Maybe one logical argument that might have some meat is maybe WSL/Wine just means that the exposure vs crutch aspects cancel each other out (for every user who is exposed to foreign-thing and maybe decides to adopt it, there is another user who thanks to the swallowed version does not ever have to to move), and if that's true, then any imbalance in effects comes down to the the innate virtues of the two things. Both groups of people are equally exposed to both platforms and have equally good-enough use of both platforms, and neither has to actually change to get the benefits of the other, and so the user will choose whichever actually seems to serve their needs the best as their native platform.
I wonder if it's possible to make a desktop backed by WSL that would be a better experience than the current ad/spying-riddled Windows native desktop? Then MS would be forced to try to enshittify WSL so that it doesn't provide an escape and superior experience from the current Windows experience. Is WSL a good thing THEN?
At least for now, WSL has absolute crap access to hardware, not even just like gpus for gaming but even simple things like access to a usb-serial adapter. So, it's probably not possible to make a functional WSL desktop yet. Maybe such things will intentionally never be fixed in WSL just for this reason, so you can only ever use it for pure web app development no different from a cloud instance.