I've always thought the endgame for Oracle was to leverage the database support all the way down to OS and now hardware. Companies are already used to writing big checks to Oracle for database support: why not a little more and let Oracle own the stack? You might even get a better value. No finger-pointing: Oracle owns *everything*.
In fact, one of Oracle's biggest competitors is in the same position: IBM. With DB2 and AIX on POWER, IBM owns the whole stack, too. IBM leverages this.
If Oracle is now adding database features that specifically check kernel provenance, that's real ugly for shops using Oracle. How could you use anything *but* their kernel?
But what is Oracle's strategy if they succeed in killing Red Hat? Solaris?