Misha has only 4s and 4t, and often in competition he falls or pops at least one of them. At this last Russian Nationals, he popped the axel to 1a in the SP, and in the FS he popped the 3rd intended quad, a 4t to a 3t.
At GP Italy, in the SP, he fell on the solo 4t, which was landed on the quarter. In the FS, he stepped out of the 4s, and again on the solo 4t.
At Rostelecom, In the SP he stepped out of the 4s, then fell on the 4t, so had no combination jump. In the FS, he fell on the opening 4s, and stepped out of the 4t, putting a hand down.
Skating fans remember such flawed performances. I can't remember the last time Misha skated two clean programs in one event. Certainly he has yet to do so this year. Perhaps that is the reason for the comment about overscoring.
Nathan Chen does a variety of quads, including 4z, 4f, 4s and 4t. He had a TES of 107.68 in the FS at Skate Canada. Compare that to Misha's 93.86 TES in the FS at Nationals, 92.52 at Rostelecom, and 93.47 at GP Italy.
You say Misha is better than Chen and Hanyu. The record does not support that.
Yuzuru Hanyu has won 2 OGMs (2014 and 2018), two World Championships, and 4 GPF gold. He won 2020 4 Continents gold.
Nathan Chen has won the last three World Championships and the last 3 GPF golds. He won 4 Continents gold in 2017.
Misha has one World medal, a bronze, from 2018 Worlds. In 2019 he was 6th, and 2021, 5th. He went to one GPF in 2017 and won bronze. He has never won the European Championship; he has two bronze medals from 2017 and 2018.
Misha has been the best Russian man over the past quadrennial, but sorry, he just isn't nearly on the same level as Hanyu and Chen.