Too soon, Pierce. Wait until after this big election is done.
People still remember Jeb! double crossing the party.
I think it goes further than that. The Bushes used to be thought of (even here on FR) as as good as conservatives could get elected. Go along get along, bipartisanship, civility, blah blah blah.
Now we have Trump, who has demonstrated that an unrepentant, combative conservative can not only win but accomplish more in four years than the Bushes and similar accomplished in the last forty. Add to that the generation that supported the milquetoast, wimpy types of candidate are dying off and both Gen Xers and Millennials refuse to support any candidate in either party that doesn’t at least seem combative, well... the Bush dynasty is looking at problems going forwards.