Sure, it's both sides trying to survive a little longer than the other, but the studios are also better positioned to create or run this hypothetical app.
Throughout the years, the one thing that has remained unchanged is that the power ultimately lies in controlling distribution.
If we support open source AI enough, there really won't be anyone able to control said distribution. Now, if we shoot ourselves in the foot and have some sort of regulatory capture based legislation where only the rich can afford to have an "AI license" then it truly would be ironic when only studios can create AI pieces while both actors/writers and the common user suffer.
Throughout the years, the one thing that has remained unchanged is that the power ultimately lies in controlling distribution.