I know what youre saying, but Kirkman himself has said this is a 2nd take on the story for him.

I also said it elsewhere but I think she was toying with him mostly. She hardly took any damage from his attacks. We’ve seen Mark go nuts and stagger his Father backwards in the S1 finale, but he still didnt do any meaningful other than overwhelm him briefly.

And he did have her, but she also had her arms and legs free when he was holding her there, she couldve potentially blocked or countered him, and with the way she goes from being so despondent to psychotic looking; I dont think she was out of fight or something, I think she just decided to fuck with him to see if he would actually strike, which makes sense, since theyre kinda testing him.

Then she goes “Id say you fight well but uh…” which to me, was her calling him soft as shit coz hes sposed to be a Viltrumite, and yet he fell for something like that. If he did strike, I dont know if he wouldve killed her, its more likely he wouldve just done more damage to her, not a killing blow. She has almost no real injuries and Mark looks extremely exhausted

If its not a change you like then thats fair enough, but I think it makes sense if Omniman is way stronger than most Viltrumites, and Mark is still stronger than he was in Season 1, so the gap seems a lot closer