Weber's tweet says he's hurt. When did that become synonymous with angry? Yes I'd be hurt too if I found out the man that I thought was going to coach me was leaving. I've taken a job because I thought I would be working for the manager that hired me, only to find out 2 weeks later on my first day that he gave notice. That's life.
Would I rather the coaches use full disclosure when recruiting? Sure, but they aren't pulling his scholarship because Drayton recruited him and he's no longer there. That would be something to be angry about.