Correct. It is in the interest of the company to sell you on all the perks and they should do that up front.
It is in your interest to view PTO as any other form of compensation and to make those compensation demands after you have demonstrated how valuable you are to the company via the interview process. You don't start negotiating salaries before the first interview, because that's a bad strategy.
How often do people really negotiate PTO? I have been flatly refused the times I have asked about it. It seems to be much more difficult than negotiating salary or other comp. Companies handle those individually so they are used to negotiating on them. PTO is often handled at a departmental or company level and companies can be hesitant to make exceptions for an individual employee.
It is in your interest to view PTO as any other form of compensation and to make those compensation demands after you have demonstrated how valuable you are to the company via the interview process. You don't start negotiating salaries before the first interview, because that's a bad strategy.