Should KWin receive stylus stroke input even with missing/zero pressure input?

I have been working on trying to find a solution/workaround for a connected stroke/leakiness issue that affects MPP tablets under XWayland. So far had I no success in eliminating the leakiness but I have discovered something interesting that might be a candidate for further investigation.
I found that stylus strokes can’t be completely disabled by forcing zero pressure as I can still draw really thin lines (even in native Wayland applications I must mention). Preventing pressure events from being emitted results in the same behavior (see demonstration below).
Stylus input without pressure information (demonstrated with Xournal++)
I would like to know if this behavior is in some fashion expected and whether if it’s sensible to get rid of it to fix the aforementioned bug.