They are doing this because they are greedy soulless bastards who don't care at all that new users are dissuaded by the subscription model and opt for Procreate instead, they are just fine nickel and diming their loyal fan base who they know will pay no matter how unfairly they priced it. Just look at how Procreate dominated the hell out of iOS market. never mind the decade+ of Windows/Mac users making do with Clip Studio, Photoshop, & Sai with Wacom tablets...in just a few years the general perception of Digital Art literally has become "Digtial Art = The iPad + Procreate." I see it all the time in my art circles, where I used to bre the only digital drawer at sketch groups, almost one by one, as many gradually got iPads, they always go to Procreate. Procreate did have a lead over Clip Studio, but once 2017 and iOS Clip Studio came out, they had an opportunity to steal that thunder and they squandered it.