Oh, so what other products/services does blockstream offer? How else do then plan on generating revenue for themselves?
Partnering with PwC probably got income already. The worst thing is Bitcoin meant to be decentralized, but the weakest point in decentralization chain become Bitcoin Core which got basicaly monopolized by BlockStream and Bitcoin as just settlement mechanism developers. It is obvious bad actors have reason to attack the weakest Bitcoin point and overtake it, without decentralized development and more alternatives people can choose from the one which fits their need/or future Bitcoin vision, there will always be this risk.