Right but hear me out. The main argument for pearls to not be put in is it would make the game unbalanced and give some players better stuff. But the problem with this argument is that by giving only ONE pearl to ONE person you are in fact not making it balanced. You might say well no one ever sponsors anyway so it doesn't matter. AND you're right. Which is why having pearls in the game just as a sponsored item doesn't seem like a fair choice to me.
Either one of two instances happen every single game.
1. No one sponsors anyone a pearl meaning they might as well not be in the game at all.....or
2. One player gets a pearl which gives them a distinct advantage over the other people because they now don't have the ability to even get sponsored one and for the reasons others have mentioned. Someone could use the pearl to reach tier 2 double chests and completely turn the tide of a game which wouldn't be a fair trade off for everyone else playing.
I am in favor of ender pearls and I also understand the problems they cause but you can't really play both sides of the fence by saying they shoudnt be made available because they are OP but they should be sponsored. By sponsoring it gives ONE player a distinct advantage, if it is put into chests it gives EVERYONE the same chance.
I don't expect this to be solved because I see both pros and cons but I think at least a step in the right direction would be to allow more than one to be sponsored per game. Make it like 5. See how it changes the game. If for the good, make it more. If bad, go back to 1. Either way I just want to make this awesome game even better!