Robert, a wee paranoid?
Let's imagine that Oracle did indeed do this. look at VW and Dieselgate - everyone gets caught in the end. And then gets their name dragged through the mud and then fined and then sued.
Oracle may be many things but to deliberately sabotage one of its own products? That is getting deep into conspiracy theory.
P.S. The Register uses MySQL but we are thinking about moving to MariaDB