Yet again, I agree with this guy.
You have to remember that this is just a leveling instance. Once most people hit 150 they will most likely never enter pv again on that character. As for sins stealthing to boss, It's 2x get over it, It's supposed to be a fun bonus for everyone. Besides, on the normal non 2x days there are alot better ways to farm ec and stealthing pv isn't as common as it is on a 2x day. PV is fine as it is, there isn't much else for me to add because I think Barbie did a pretty good job of answering your questions.