People who talk about "pacing issues"

I get that it's vague and doesn't give much to argue against, but it's a general complaint that covers a complex topic. Compare Chrono Cross to Chrono Trigger. Compare Luke Cage S2 to Loki S1. Compare Hancock to Once Upon a Time in Hollywood.

Sometimes media is evenly paced and sometimes it's purposefully slow paced. But sometimes it drags too long unnecessarily or rushes when it shouldn't.