Personally I really like the normalization of these "Permissively" licensed models that only restrict companies with massive revenues from using them for free.
If you want to use something, and your company makes $240,000,000 in annual revenue, you should probably pay for it.
That's fine, but I don't think you should call it open source or call it MIT or even 'modified MIT.' Call it Mistral license or something along those lines
These are not permissively licensed though, the terms "permissive license" has connotations that pretty much everyone who is into FLOSS understands (same with "open source").
I do not mind having a license like that, my gripe is with using the terms "permissive" and "open source" like that because such use dilutes them. I cannot think of any reason to do that aside from trying to dilute the term (especially when some laws, like the EU AI Act, are less restrictive when it comes to open source AIs specifically).