I don't think developers can/will request such an unreasonable demand from a service. Especially not indie devs, at best, some will pay for a DRM but lets assume "enough" devs did demand it and Valve listened.
Like I've said, they'll be losing a lot of customers including innocents that will get caught in the crossfire which would mean they'll lose significantly more money compared to the money they'll lose by "enough" devs leaving. If money talks, they will absolutely never make such a suicidal decision.
Again, that's the same as you hoping for me to not get married, the possibility of life on Earth going extinct is much higher than either of those things happening.
So, we'll definitely be fine, no need to worry about us pirates.
But, hey, you do you if you truly believe in such possibility ever happening in our lifetime ¯\_(ツ)_/¯