The instant pet rez isn't the bit that overpowers the tamer, it's just a feature that makes them feel comfortable replacing vet skill for another more powerful skill. It's adding in extra skills that make the tamer stronger and potentially overpowered. Just as it does when a PvP tamer replaces vet with something offensive. NPC vets are a
backup option tamers can rely on when they need to. Making it faster makes it more attractive. It encourages more tamers to drop vet because they can survive without it. It doesn't take a genius to work out that being careful and employing the log-out trick cuts your pet deaths down to a level where you aren't spending ages getting all rezzed. I've been a tamer for well over a decade, I do know how it works and how viable zero vet is these days
Seeing is believing. It can work if you have the right template and know how to use it. Greater dragons are pretty tough tanks. Of course having vet and magery gives you more defensive protection for your pets, but even my zero med tamers can chain enough greater heals to keep a GD alive when they need to.
Class hatred? Well I'm the tamer forum moderator so guess which is my favourite template lol. You wanna accuse me of hating my favourite class, be my guest
Just because you don't think a template isn't viable doesn't mean another tamer can't make it work. I learned that lesson myself because I didn't think a tamer worked without vet in PvM either. Sometimes enough things change in a game and impossible becomes viable. Some tamers aren't as concerned about skill loss as the next tamer is. Certainly not until the tactical log out is fixed. Then you'll see an appropriate response to pet death and skill loss because some tamers won't be able to circumvent it. But until then any changes to the NPC vets need to be made sensibly in consideration of what tamers can do, so we get a good fix that doesn't require a nerf later on.
Wenchy