Yeah true, the downfall of most SaaS services I used was that they were too careful trying to build too much moat and sabotage any competing efforts.
If they were a little more chill then I'd think they could make much more money. I personally would pay a few services, even as an individual, right now, if I knew I could always get a good database / JSON dump of everything at a 5-minute notice, and build my own thing on top of it.
They don't get this psychological aspect at all.
Most of them are in the business of getting acquired, not the business of doing the business.