They keep them grouped together though. If you look closely, they're in the same bubble while firefox is in another one. Probably shows both for the convenience of most devs.

(also Microsoft being Microsoft might shoehorn in some feature no other normal browser would just because)

MDN does, not my decision

they are grouped and as they are different browsers that theoretically could have different blink versions I feel like it makes sense.

The people who use MDN for their work need to though