This is just one players opinion of your post, so please understand, but you sound more than a bit ticked, which is anyone's right, but to be honest, I played this level, several times in fact and had pretty much the same experience, and had to figure out how to get the guy on the side before he got to the top, because he gets stuck up there. But i figured it was a lot like the old games of yore, where, you know that kind of stuff happened. The over and over stuff also seemed to be a bit of a throwback to those times too, so it was really no big deal to me. I just lather, rinse, repeat until i got through it. I wasn't half or even a tenth as upset as you seem, especially since you said you couldn't be bothered. Honestly in my opinion you are rather harsh, which can be for all sorts of reasons,
Anyway, have a happy day, and maybe a cola, or a beer, or even a less intense level of frustration before gaming would make the whole experience much more amenable?
-Teal