I would think the big issue here is that they still make a ton of money off of you by selling your data.
Any Software as Service is deeply flawed because it is pretty much guaranteed to extract as much data from the consumer as possible. In this case, it is quite a bit worse, because it's likely close to your entire content or body of work that they will take.
So unless it becomes something that runs locally and has no networking component to it whatsoever, it's not going to be worth spending money on for many people or companies.