Regarding the recent comic, Hama was only ever "above competent" in the original run to begin with. I'm reading the original run right now on my tablet actually, some of it for the first time, and a lot of it is just one rung above the cartoon plots. People remember these books as being more important, groundbreaking and interesting than they actually are. It's more grounded than the cartoon was, sure, but that's not saying much.
There was a learning curve. During the first two years, Hama was still settling in. He generally hit stride around the 4 or 5 year mark, which would have carried him through to the 8 or 9 year mark (circa issue 100).
Some of the this is also a question of when the comics came out. Hama's early run was a cut above standard for the 80s. (Note his sparing use of thought balloons and narration boxes. It is easy to take that for granted now, after the industry has spent years pushing away from that kind of bullshit. But, in the 80s, that kind of crap was perfectly acceptable.)
I'm around issue 25 or 26 right now and, within 3 or 4 issues of their debut appearances, Cobra Commander has already pissed off Firefly, Wild Weasel, Storm Shadow, Zartan and all three of the Dreadnoks. (This is in addition to Destro, Major Bludd and Baroness already wanting to kill him. Mindbender hasn't shown up yet, I think he's an 85 character.)
Cobra was not supposed to be well functioning. That was the point.
Look at Hama's Cobra as the American Dream gone horribly wrong. Cobra Commander is a Horatio Alger monster (self-made man, a leader, seizing the day....). Now, filter that through the 80s. (Obviously, you were not there. But, you seem to have a good understanding of the decade.)
You are partly right about Mindbender. He was an '96 character, showing up around issue 4o or so.
Key issues:
-19: First attack on the Pit.
-21: The infamous silent issue. Over-rated. But, it is the first appearance of the tattoo.
-27 and 28: Origin of Snake Eyes and Storm Shadow. Implication of Firefly's involvement (dialogue between Zartan and Firefly).
-44 to 52: Discovery of true killer's identity. Death of Soft Master (including further implications about Firefly). Redemptions of Storm Shadow.
-53 to 58: Redemption, origin and death of Cobra Commander.
-60 to 66: Introduction of Blind Master. Stalker, Quick Kick and Snow Job in slavic prison camp.
-84: Zartan origin. Red Ninja explication. (I think this is also the issue where Billy begins training with Jinx.)
-94-96: "Snake Eyes Trilogy". Contrived, but notable tor including Baroness' origin and expanding on the revenge theme.
-98-100: Return of Cobra Commander. The series had begun to decline at this point.
-126: Firefly origin. Last big reveal of the series.
-55: Last issue.
The fact that Sean Collins has a new code name ("Throwdown?" What a terrible piece of shit) and isn't Kamakura is a fucking travesty. I don't care if Hama didn't come up with that name, it's more than established at this point and should have been kept. At least we get some random Red Shadows action, that's a plus!
Hama only wrote Kamakura once, in "Valor v/s Venom". Not sure Hama ever assumed that Kamakura and Collins were the same guy. I tend to think that "Throwdown" is an intentionally vague and disposable name. What kills me is that Snake Eyes dying and being replaced is the sort of thing that I like in theory. But, Hama's execution has been laughable.
I am giving this book a few more issue. But, if it does not impress me by the end of Marvel's "Secret Wars", I am done with Hama (and possibly Joe) for good.
I tend to think the art problems are a result of IDW trying to use retro pencils and colours with modern printing.
I am pretty sure both the Joe and Cobra robots are based off TFs. The top robot on this page looks like one of those non-Movie video game drone characters from the first Movie toyline--they all had that "lenses for faces" thing going on. The black robot looks like he's based off, of all things, Generations Drift.
The robots plot is just....pointless. I wish I could say that it looked like Hama had a reason or plan for using the robots. But, so far, it just seems like a random threat.