I agree with you OP the requirements are way to low for this.

And yes like Roth_Trailfinder said you can even become a battle mentor with just gatherers or crafters..I am a mentor thanks to this because I care way more for DOH/DOL classes than the others yet I feel that its bad that you can be any mentor by just getting it unlocked with the gatherer/crafter requirements..How am I good as a PVP mentor even though I barely have done any PVP matches? Why I am allowed to be a battle mentor if I dont even have a tank at 60? (I am also far away from the dungeon requirement thanks to disliking them)

I dont understand why they created a system where you can choose all crowns even though you are only good in one?

I think they should first restrict the use of the crown. You should only be able to wear the battle crown if you fit the requirements. The same for PVP and Gatherer/Crafter. If I would be in charge I would also take away the mount since this only creates problems with people that want the crown only to get that. But since I am not the one that decides this I will say that they should change it so that you can either get it with the roulette or with a certain amount of pvp matches or a certain amount of collectibles. (Because if people can only wear the crown with the correct requirements only the battle mentors would have a mount)

After that I would increase the requirements and people should be forced through some kind of test. Not sure what you can do for PVP but for battle it could be some kind of arena battle which you have to be at least decent in each three roles to pass it and for gatherers/crafters they could have some special items that they have to gather or craft that cant be bought on the MB. This would show that someone has at least some kind of experience.