I've already given the disclaimer that I haven't completely finished. Despite that, what I have seen so far has been pretty damning, and I don't see any reason to discount it all together. Once I finish tonight, I'll weigh in on of the final 4 episodes really change anything. I don't see Matt getting some huge upgrade in skill and damage soak out of nowhere, so I doubt much will change.
I've also already stated that yes, he's probably one shotted some fodder, but he's also taken multiple hits to take out enemies too. Either thats highly inconsistent, or they just have glass jaws.
And even if he has one shotted a few goons, he definitely isn't going to take out Ollie with his hits. Ollies taken much worse, unlike Matt who was stomped in under a couple of hits from the Punisher and stomped twice by Nobu.