I think that's a simplistic way of looking at it. I'm not sure when the complaint went into GMP but I was under the impression that it was quite recently. Even if it wasn't and it was months and months ago, these things take time to investigate and since Covid they've been taking even longer.
As for the suspension, well United are claiming it's not a suspension but I have to admit it has all the hallmarks of one. We don't know if it's a "bit premature" though because United may know a fair bit more about these allegations than we do. If indeed a club doctor was called out and they've been covering for Antony in some way then that will reflect badly on them. It does seem a little suss that this "suspension" has only been announced soon after the club doctor story hit the public domain. Of course, that could be nothing more than a coincidence but I can't see them taking this action if there wasn't something more to it than allegations with no supporting evidence. Especially as he cost them £80 million and we all know it's ultimately about the money with the fuckers who run that club.