I'll no doubt get downvoted for it, but there really is nothing abnormal about it. I've never heard of a single game that provided the types of rewards you pulled during the introductory phase where you decide whether or not to keep playing, forever.
Nerds have been pumping out excel spreadsheets since before the game hit release figuring out the monthly income everyone will be expecting as the regular and I think it's pretty damn good. But for anyone who wasn't expecting what the real rates in values for pulls already was supposed to be and figured they'd be able to just dump massive amounts of gems over and over again they'll probably flip out.
Honestly like I said. It's pretty damn good, but I'm expecting people to run train on the downvote button because they don't like what they see or hear.