Yeah, when you put it like that, it's super depressing. These types of things are just too lucrative for companies to pass up.
This is also how preservation dies. This is not a game that will last. 20 years from now will it even be possible to play? Not that any companies actually care about that.
I would want to think that in 20 years time, some form of emulation and community enabled servers for the current gen/crop of mobile games would have taken form and critical mass reached for some titles.
If you're thinking about official servers for particular games, however, the demise of online infrastructure locking out a gaming experience is neither new nor specific to the mobile platform. Many PC and console games have pretty much been lost to the ether with server plugs being pulled.
(On PC less so, since if there's a dedicated community, someone inadvertently will figure it out - open platform and all that)