I think
cool meant only that there is no reduction of vowels...like in English: if you say c
omputer instead of comp
uter - stress the first or last syllable instead of the middle, for example, not changing any of the vowel sounds - it's not the end of the world. The vowels are pronounced the same and unless it's a word where the stress changes the meaning, everyone will understand...but still, the right way is comp
uter and otherwise it sounds wrong.
Or sometimes people might not get it: I was talking to my mom about Men
uhin the other day, and she was like, "who?" Apparently it's M
enuhin - anyway, it makes a difference, and a big difference, just not the same problem as Russian has with reducing unstressed vowels.