I guess it feels a bit weird to say "the most successful operating system in a given region isn't allowed to bundle any first-party apps, but all of the other ones are". They seem like different scales of the same thing, and maybe Android's case is only being seen as "abuse" because it's at a larger scale due to more marketshare.
Is not about bundling, if Google would sell it's own Pixel phone is OK, but if I want to make a contract with Google to sell my xPhone with Android the illegal part is when Google is forcing my hand to put Google apps on the phone and put the Google search on the home screen on all my xPhones but also on say my cheap xCrap devices. The problem here is also the Google search part, you use your dominance in mobile OS market to force people into your search service.