Well, Postgres is F/OSS, so I expect the solution to problems to be "lots of small tools"... but I see the same kind of herculean battle-plans for MS SQL Server work, and I get shocked. That is a paid product, what on Earth are we paying for?
The same is the same for any relational DBMS: lock-in.
Of course, you can always sue. A $2T company. Good luck with that.
Would only add that the main reason people buy these licenses, apart from familiarity, is so they can shift the blame if something goes wrong. Its all about ass covering.
1) the illusion of "support" 2) OSS-fearing companies' love of indemnification