Agreeing a deal verbally and then trying to get more money is standard operating practice for Daniel Levy so I don't know why he'd be offended. Poch clearly wasn't happy about it, but he's gone now so we move on. The new contract is in the club's best interests in my opinion.
So Poch was a victim of his loyalty to Club and Chairman. Maybe he's too much of a gentleman for cutthroat football.