You're saying 1/16 is bad and feels excessive and should be discouraged.. but 1/8 (sometimes) and 1/4 is fine.You could always half/double/triple/quadruple/etc the BPM of the song too, in case you want 1/2, 1/1, 2/1, 4/1 or x/1 to be excessive too.
I can say the same but a step lower - 1/16, 1/8, 1/4 is excessive and 1/2, 1/1 is fine.
How more valid is "banning" 1/16 and 1/8 and not banning 1/4?
Usually it's like this: 1/1 is the basic beat, 1/2 is what we see as the basic playing beat (Singletaps). 1/4 are Streams to us (fast consecutive beats), 1/8 are "really fast Streams" (not many music genres use 1/8, so it's not used very often) and 1/16 are for shitmaps.
1/1 is common
1/2 is common
1/4 is pretty common
1/8 is uncommon, is restricted to some music genres
1/16 is uncommon
I'd assume that this is why we're allowing up to 1/8 if the music allows for it. If it doesnt fit, then we're not using it. That's just how songs work (I guess).
Does that somewhat explain my thought? x:
After all, if you think that 1/4 is excessive - Dont use it. Nobody is forcing you to map that way - but neither should you try to disallow others to use what they'd like to use.