It's like a nuclear race, you are funding it not because you want to nuke someone but because you don't want to be nuked. So the incentive here is to continue

It's like a nuclear race, you are funding it not because you want to nuke someone but because you don't want to be nuked. So the incentive here is to continue to make it viable in order to have an argument against someone trying to blackmail you because you are so locked-in into their ecosystem. On the other side, the more viable you make it, the better future you are building, as you then have access to a platform where you can actually control from end to end, and so implement whatever your future requirements require you to. They are not in a hurry to change the status quo, they are playing it for the long term.