Yeah it works, program change in the drumbank of N-series and its cousins do need a full bank message to be set.
It get a bit messy codewise either drop the kits as banks in bank optionlist. Or make a special case for programs in “drum/GM bank”.
And special cases does not feel right, i think i list the kits as individual banks in option list, because they all need a bank message. And i already have the messages for Korg N364 in an own file.
So i keep the generality of program change.