There is one big difference. With EX mount, with a team, you can retry it as soon as you finish one. here you have to wait for 1h cooldown + the time for people to spawn it. in average, that around 1h and an half. (At least for 12/14, which are the one most complained about). keeping that drop rate with the thing spawning more often would please a lot of people. You're right, it's like extreme mount farm... With a 1h30 timer, where you have to stay in bozja or else you might miss it. Bozja that doesn't give you anything worthy during the wait.