Earlier quoted context omitted.
I've never minded when my employees do this (and can't imagine why I would). I've also done it myself fairly often because of the PTO rollover limits. You've earned the vacation days. If your vacations happen to be every Friday for 8 Fridays in a row because that's what you prefer, that's none of my business.
Some employers ask you to take holiday in longer blocks because they want people to be able to properly relax and recharge and they think you can't do that in just blocks of one day. (Not saying I agree, but that's what they say.)
Your boss's stated reasons for compelling you to do a thing are often not his real reasons.