They cared about getting home to their families, but they also cared about getting rest and being pampered, something that apparently doesn’t happen very often with Seabreeze as their leader.  A lack of immediate initiative is not indicative of a lack of caring or interest.  It is established within the context of the episode that they have been travelling for some time, and they are small.  This leads to the conclusion that extended travel, even with the aid of a breeze, is a tiring process for them as it is with most creatures, hence their enthusiasm when offered a short reprieve.

Yes, the pollen would have gone bad, as Seabreeze points out, but again the responsibilities of tomorrow are often set aside for the pleasures of the present.  There are flaws, but they do not break the story.