All I'm suggesting is realistic jeopardy rather than the artificial jeopardy they come up with. You say you don't want to read about "bookkeeping." Yet they brought up similar points in the current Ultimate Armor Wars miniseries.
I dont read the Ultimate series. I read the first half of the original and was unimpressed. Plus the armor is such an eyesore it distracts from the story. That they go into the bookkeeping may be why the series is never really acclaimed by anyone?
You say you don't want to see him field test systems. But there are plenty of things they can do behind the scenes. We don't have to see everything, just to know that it wasn't swept under the rug, that Tony doesn't apparently have a huge warehouse of armors to select from.
You do realize that Extremis was the first time in years that anything new was really done to the armor? Powersource, bootjets, repulsors etc. were all the same for many models. Do they really need to waste time to even say "I did a bunch of field testing on systems I've used for years?" Not really.
Where's the "fun" in "Well, okay, I just got my butt handed to me and another armor destroyed. Okay, I'll just grab another suit that's conveniently all set to go and proceed to wipe the floor with the villain"?
This has happened with a total of four armors: Silver Centurion, Neo Classic, War Machine and Modular. Four out of over a dozen suits. Modular armor debuted over fifteen years ago so I think you are making too much of this.
Notice in the movie that the armor didn't spring full-grown from his imagination. He had to test the boot jets, which threw him against a wall when he first tried them, and the repulsors, which gave him a kick he'll never forget when he fired it. He had to flight-test his first iteration flying armor. Nobody complained that all of that was "boring."
The movie was an origin story. The debuts of the other armors were not sans the Heroes Reborn armor, and the whole point of that series was to reboot the characters. There is a major difference because in the comics all of that was covered and its not needed to be reviewed everytime Stark dons a new armor. The armor has also followed a slow evolution over forty years of comic history; that evolution won't fit into a two hour movie. Did you want to see him progress to the classic armor, then silver centurion, then neo classic etc. until we finally reached the current armor?
Look at how easily he beat his Argonauts using his regular armor, most of which conveniently couldn't "read his mind" except for the Hulkbuster. If it's that simple, why even bother to have specialized suits?
And as I said when that issue hit the stands, the ending was extremely rushed and disappointing, the Argonauts being destroyed way too easily. The end of Execute Program was not good for a variety of reasons, such as the ones you mentioned.
If we're going to ditch all sense of realism, we might as well go back to solar-charging the armor, or charging it from a portable gasoline generator like he sometimes did back in the Classic era.
You're taking this to the extreme now. Somethings work, some dont. Those you mentioned dont, which is why we havent seen them in how many decades? You'd have to go back to the days where comics were still very campy and not the best written works to find those instances. Comic writing has evolved a lot since the days of a gasoline generator recharge. You dont have to ditch all sense of realism, but you need to ditch quite a bit in order to make things work. Otherwise Stark would be carrying a miniature nuclear reactor on his back in order to power the armor that causes his to fall over half the time. I'll suspend my belief and stick to beta-particle generators and arc reactors.
