Regardless if its a "good idea or not", we probably won't do any vip account due to the technical issues being more troublesome than its worth. It'll be easier to make items that give donaters that same amount of benefit instead of changing the very nature of the account itself.
Also regardless if it's "true or not", accelerated exp is actually heavily regarded as a p2w method, at least according to most RMS "Looking for server" posts and RMS is where vast majority of new players for heRO comes from. We used to do server wide exp donations so that everyone benefits instead of donating for your own personal benefit, but we removed it when it got out of hand, even though it alleviated lot of financial stress.
We are grateful that our players are understanding and is actively looking for ways to help pandora pay for the cost, but we also value outsider perception of the donation rewards as well.