What you are describing could be called "moralism". This is always a tendency in movements, but it's worse when the political level of movements is low (and the political level of all US movements are pretty low right now and so this can be pretty common). So if a movement, or even just a group of activists/organizers like in this case, is unclear about it's larger aims or underconfident and uncertain about how to achieve their aims, then often the activism becomes an end in of itself.
Lack of clarity, doesn't mean the people involved aren't politically sophisticated, it could mean that a movement is broad and unfocused and so people fear making political arguments because it might break apart the coalition. I saw this in Occupy, for example, where the lack of a clear sense of where and how to continue the movement after the camp was evicted led to people just repeatedly challenging the cops for the sake of showing their opposition to cops - but it then, like you said, it becomes like cheerleading: those who got arrested are more "down" and more political even if it dosn't accomplish anything; having an anti-war demo that makes it on the news is "sucess" even if the demo didn't actually help people organize their own resistance any better.
This is not to say that either of these examples are always useless, just that if they are not seen in connection with larger poltical goals both for the general movement and for us as revolutionaries, then we are kind of spinning our wheels. In a union where workers are afriad to strike, maybe a sysmbolic work action is actually "accomplishing something" even without material results because the workers involved gained confidence they could pull something off and so now they aren't as afraid to organize and fight as they were before. The same action in a different context might actually be a step back because if workers are confidennt, too many timid actions might cause people to doubt themselves or become frustrated or passive.


