Honestly, this isn't too different from any other software or technology nowadays. "What if the service provider pulls the rug on us and jacks up the price exponentially / begins the enshittification" is (and if you aren't doing it, you should be) a factor when procuring and using anything from a third party anymore.

The software world is, by and large, no longer about making products with a focus on the long-term, whether that's about the customer's well being or even the company's own long-term functioning. It's about trapping people, siphoning their money, then running away after setting the building on fire. Founder McBuilder will throw away his entire userbase and tell them "lol idk good luck" about their usage needs if it means he can make an extra dollar.

This is as true for enterprise as it is for consumers. Look at all the lamenting when a liked name gets bought by venture capital or considers an IPO.