I don't have a lot of experience and knowledge about ALPA but is it always desirable to have somebody ready to strike? NWA and UAL had that reputation and now look at them. CAL has been regarded as the opposite and they're arguably the most successful post 9/11 major. The rules of the negotiating/striking game have changed. I don't know if that kind of leadership is what pilots need right now.
We definitely need somebody strong in our corner right now and he's a fighter no doubt, but the NWA/UAL approach to negotiation doesn't always work. My 2 cents.