Still kind of amazing that the notion of buying your way into image quality with a camera is a thing these days.
What others have said. Don't ignore the craft. Swap out an ARRI with a GH1 in certain production environments and you'd be, like, "Holy shit! That looks awesome!"
Three or four stops of DR does not a good image make. It helps, but it doesn't make it.
A decade ago a bunch of cinematic heavyweights, Coppola and the like, did a popular test screening of hybrid camera tech at the time. They were more than pleased with what the products, like a 5dII, were delivering. If it was good enough for them in 2010's, what the heck are we worried about?
Also, who remembers that one talented dude guy filming in 720p on a canon rebel? I think his name started with a "Z"? Beautiful stuff because he knew how to use it. Would it have been better if it was an ARRI? Of course, but would that really affect the narrative?
Anyway...
And then, yeah, add in a bunch of YT knobs playing with the gear without any deep wisdom about gaffing, camera moves, and storytelling --of course the video examples of hybrids'll end up looking like crap.
Here's an anecdote: I'm currently editing a documentary with a decent budget. The cinematographer on the shoots sucked balls. He filmed with an ARRI and two different REDS along the way. The ARRI has a look. It comes out of the cam with a lot of "thickness" to use, you know? Regardless, we recently had to hire a different guy to do a half day of pick up shots and he used his lowly GH5. He knew how to find the right light, frame an interesting composition, and (thankfully) knew how to hold a mother-f'ing-shot longer than 2 seconds. Grrrr.
Guess which footage looked better and was more useful?
We can (and should!) chase the tech if that's what floats our boats, but real creatives don't really give too much of a rip about the tech. "Is it working? Good. Let's tell this story." They make it happen with what they got.