I don't think the issue is the bisht itself, I think the issue is that Qatar have been shameless in sportswashing and that this was another attempt to do so.
There have been people in this thread who referred to this as a great World Cup; this was in absolutely no way, shape, or form a great World Cup. Yes, there was a great World Cup Final but some of the fare from the group stages was dreary, with only 2010 being worse from my memory (And at least they could blame the Jabulani). 6 games in the group stages ended 0-0; there was one 0-0 in the entirety of the 2018 World Cup if I'm not mistaken. Couple that with lifeless stadia with seemingly full capacity despite the fact we could see many empty seats in the far stands, corruption in the bidding process, deaths working on the construction of the stadia, a country with no trace of footballing culture, and a place that truth be told has never really been a major tourist destination and you end up with a tainted major global sporting event.
With that all said, when the bisht was offered to Messi, do people not have a right to be skeptical? Qatar hardly deserve the benefit of the doubt when it comes to sportswashing even though in this particular case, it might not actually have been sportswashing.