There are two „world views“:
a) Performance 1 is the start, performance 2 is a higher number, therefore it goes upwards (the way Kemper implemented it).
b) Performance 1 is the start, we are following a setlist going „down“, hence performance 2 is below performance 1 (the way I [among others] think of it).
Neither of those is „wrong“, these are just different perspectives - equally valid.
I totally appreciate Kemper of thinking about it before implementing it, but an option in the systems menu to flip the buttons could be implemented. You manage to work on much more complicated stuff, so why not implement an option which makes a number of people happy even if you think differently about it?