Anything is possible. I have no idea how some of these people get to be bishops. Some of them have been disasterous picks. Mostly it's been the papal nuncios in individual countries recommending men who aren't suited for the job.
We have a holy hour at our cathedral. It is popular in some ways, but is at 3:30 on Saturday afternoon. I don't mean to make excuses, but there are other times during the week that would by much better attended. There needs to be some thought put into this.
I think sometimes things are scheduled that way on purpose. That way when someone asks about it, the priest in charge can always say, "See - we have ______, but no one ever comes, so we might as well not do it anymore." That's like scheduling Rosary for Friday night. Who with kids (especially here in Texas where Friday night is football night) would be able to come, even if they wanted to?