I don't think so. He isn't first overall and he has great result for his age. There were a lot of more cocky, more illful or players, who didn't play more after draft. Other things are about overreactions in the context of modern politics. Lindros didn't want to play and asked for a trade, Jagr wanted to play in pens only, Daigle wanted money, Wright didn't play the whole year and was meh in his pre draft year and act quite funny in the draft day, Wayne himself wasn't drafted and played his first year outside from NHL, Malkin escaped Russia "illegally", there were a lot top 6 players who played very badly after draft. Jack Hughes, Kakko, Lafrenier, Slafkovsky started very slowly in NHL. Etc. 1. Michkov is very calm in interviews, act like he was excited to be drafted by flyers, making great results for his age and for khler overall. Yes, he was ill many times, but Luke Hughes was ill about two or three times this season. In the context of Covid and cold winter in Russia 2. he should work on his immune, but I believe he will handle it. Other talk are more conspiracy because of hype, clicks and politics.
And ofcourse I'm sympathize to him, so may be im little bit belittling "this issues")