I think all DHF spending (and post rewards) ultimately affects the price of Hive both in terms of direct cost (selling pressure) as well as positively by whatever value is achieved (attention, recruiting, platform development, etc.)
My opinion is that, given the price drop over the past couple of years (not just the recent volatility), we're spending too much on DHF, and more people should vote for return to bump some, or even many, of the lower-ranked proposals out of getting funded as long as the price is so low. The prioritization of the different DHF proposals should be up to the degree of stakeholder consensus, so I don't think VP is really special, although to be fair it is very large.