Rey kicking Kylo’s butt makes him seem very weak period. Plus there is no plausible explanation. But this thread isn’t the place for this kind of discussion.
You mean besides the fact that he was severely wounded and bleeding out from a shot to the torso that was previously established to carry enough force to toss multiple troops into the air? And a mental wreck after just murdering his own father?
But you’re right, wrong thread for this discussion.