Sounds like Ellison thought it was a game of musical chairs that would leave HP standing and Oracle and Intel sitting. I don't doubt that Oracle was misguided. Might be really hard to prove intent and fraud. What ever was said to mislead Oracle won't be backed up by legal mumbo jumbo in the contract.
Seems like Ellison has gotten too emotionally attached to SPARC. When Oracle acquired SUN everyone believed that the acquisition was to gain the software assets like Solaris and Java.SPARC was known to be a dead end. Ellison is trying to squeeze blood out of a stone .