I wouldn't like it. I tend to prefer my descriptions more descriptive. It is how I visualize everything in the game. I very rarely look at the long desc of something, unless I'm putting it on my own character.
The figure in the dusty earthy-smelling heavy, moderately skillfully-tailored and heavily-dyed red sandcloth dustcloak with a deep face-hiding hood and stylish black embroidery says:
"Reductio ad absurdum"
Edited to add:
I'm not trying to be a dink (much) and appreciate your input. If you think it's "about right" where it is now, that's totally the kind of feedback I was hoping to hear back. 
You're creating your own
fallacy 
. I didn't say that descriptions should be changed in the other direction. I was answering your question about whether shortening descriptions was worth doing. Since I have a little more time, I'll spell my reasoning out better.
I'm a writer, I like vivid descriptions. Changing something like "ragged, brown sandcloth facewrap" to "thin brown facewrap" just isn't very vivid. As I said, I prefer my descriptions to be more descriptive. Which isn't the same as your example above.
I didn't find your examples persuasive. When someone is "the very short figure in a dusty X" the are always going to be over 35 characters because the code adds situational modifiers that are themselves 34 characters long. It doesn't matter whether you cut one or two words out of an item's short description, any very short figure in a dusty/bloody whatever is going to have a long description.
In some of your examples, the descriptions are already short. For instance, neither a thin, brown-sandcloth facewrap nor a long, featureless bone mask have descriptions that are over 35 characters long. Which seemed to be your base line, based around PC sdesc limits. So it didn't really seem to me that you were arguing changes solely based on length, but rather want to change items to have simpler descriptions. Again, I'm opposed on vividness grounds.
I didn't see any problem presented in the OP except that the descriptions are long. I don't agree that longer descriptions are problematic just because they're longer. (I did see RGS say the long descriptions bother him in combat. They don't bother me in combat, but this isn't a debate, so I didn't feel the need to address that point). The only thing about longer cloak descriptions that bother me is when they get dusty/bloody and line wrap my equ list. But that's really only a minor annoyance, and it happens with more things than cloaks.
Hope that helps!