Personally for me? I am deeply concerned that internet explorer becomes not terrible.

People would be stupid enough to then use it.

Then microsoft would have more clout.

They would immediately use that clout to cause enormous industry problems, push bad standards, fail to comply with open ones, push windows specific extensions, ect ect ect.

I am 100% concerned that internet explorer might not suck. If that happened, the internet would be in a much worse place.