IN SHORT: REMOVE YOUR NEW XP SYSTEM GIVE US THE OLD ONE BACK, DONT BREAK WHAT ISNT BROKEN.
CLEAR CASH SINK MONEY GRAB.
LONG STORY:
All they need to do, is remove there new cash sink trainer tower xp method, and give us back the old method that there was nothing wrong with..... Return it exactly back to how it was, and then maybe like you said add the trainer tower to give even higher xp for cash.... rather than lowering wild training in for example as you stated cerulean, to near Impossible, its a joke and CLEARLY a cash sink they have purposely Implemented, which has literally made me feel like quitting the game totally, I'm only hanging on in hopes that they fix this new bs xp system, id rather play another poke mmo at this rate, it's not like we can even level just 1 poke anymore, I have a box of pokes to level, and it's a pain finding ones within the 9 level gap to take in as a 6 to make the 9k payment price for worse exp than I used to get In ceru for free, it's also the only reason a lot of people do certain in game quests eg blackthorn, ceru cave, give us our xp system back, before u lose your playerbase, all you have done is annoyed pvp and pve players alike. I've met 1 person who likes it. And constantly hear people complaining about it (TOTALLY UNDERSTANDIBLY) ITS A RIDICULOUS AND STUPID IMPLEMENTATION, imo. And was totally pointless. Why break something that wasn't broken? When they have so much in game that IS broken
The only way these new trainers towers would be a good addition is if you give us the old xp method back, and make these trainer towers even higher xp than old xp. But with the payments you have in place.