Open weights are certainly something that is very eagerly being adopted in some companies.

It's not even that expensive because even the 15€/month/employee bill for people who use AI very little can stack up.

Beside that though, many companies already have most if not all of their data in some cloud (Microsoft would be a prime example). Giving them a few extra bugs to get a (potentially) very useful tool is not out of the ordinary.

If you are under the impression that not going AI would threaten your business right now (which may very well be true for some companies) then there isn't really a choice even if you believe the vendors will steal everything eventually (which they totally will)