FTFY
Without IE we wouldn't have XMLHTTPRequest, something used by practically every web developer in existence today. Innovation happens, and apparently so do walled gardens that outright forbid any competition.
It's one thing to not implement web bluetooth, web midi, and other APIs on your own browser, it's quite another to block anyone else from doing so with their web browsers. The EU thought so too and forced Apple to let other browsers use their own engines. But not in the US yet, until the DOJ completes the case against Apple.