I taught beginners for many years and I would totally agree with you. Kids these days need reminders, constant reminders and that it hard to give only two days a week.
One of the biggest things I hated for 5th and 6th grade band I had the last 16 years was providing me with a 25 minute teaching period. The schedule did not have 5 minutes between classes built in. It was the elementary thing/setup.
The only reason 5th graders were started was to build the band program.It did to a degree.
I really wanted to ask the principal if she was insane!
This was at a 5A with a small school atmosphere.