No of course not. Things are what they are.

The Democrats' long-term planning skills are not in question here, but they must recognize that they cannot enact those long-term plans without access to the levers of power- and that short term concessions must be made to that end.

As for voters: we all wish they thought more and weren't constantly led around by the nose, but both facts and feelings are part of their individual calculus for support. Obama was carried in on feelings of hope which vibed with the zeitgeist. Trump came in on a presentation of a strong figure (that we know to be false) that complements the uncertainty about the future that Obama left behind when hope kinda petered out over his term.

The feelings in this case are critical because we know politicos cannot possibly keep all their (sometimes contradictory) campaign promises and they cannot voice their position on every issue. So it falls to the voters to suss out what priorities and allegiances the politician has and how they will respond to any given event.