What is the most ridiculous or specious attack against CM that you heard or seen???

What makes you think this is ridiculous or specious? It's pretty clear that there are/were different factions working to manipulate the ratings and reactions for various reasons pro and con, just like there are on many of these movies where hundreds of millions of dollars have been invested in something where a three day window can make or break them.

For me it was the contention that Brie Larson was 'wooden.' For chrissake she was playing a military officer who'd been mind-wiped and then indoctrinated by the Kree who seem to want to turn stoicism into an art form. In that context she showed plenty of personality and was fun to watch.