They played it safe. The premise of the series had what it takes to scale up in its insanity similar to something like Gurren Lagann or something. It, technically, did try to do that: it started with a small group, which moved to a bigger group, then to group with gods, then to space, and even beyond. But it was not leaning into the insanity of it all as much as it could have and should have.
Even the characters selected were [mostly] minor ones from MCU, probably to reduce chances of fans saying something bad, in case something went "wrong". Which completely missed the point of the original comics (or at least those, that I read years ago). Those were insane and brutal and unapologetic in both. And it was the whole point: they picked up familiar characters and put them into conditions which often flipped their behaviors, truly asking "What if?".
In TV adaptation it's just... Meh? Yes, it's just 4 episodes, but it probably could have been 1, maybe 1 and a half and, because there was barely any impact or anything interesting. Mad Max like moment was ok (unclear how skrulls got involved, though), last mass fight was good, but everything else was underdeveloped, and mostly meaningless for the main story as result. But it's not in fashion in MCU to slow down the pace and explore deeper topics, I guess.
Which, again, was part of the appeal of the comics. It could have been seen as somewhat goofy at first sight, perhaps, but zombification there brought up serious discussion about loss and death in general. Which is not really discussed that much in MCU unless it's something like "I lost my mentor, and now I am not that motivated to fight crime". That is just a plot device, and nothing more.
Overall, it's watchable, of course, but not that impressive. I guess that may explain why I did not see that much hype about it.
