I don't get any pad "rattle" but the pads do have some radial movement when applying the brakes resulting in an initial "knock" when the pad plates contact the caliper. There is also some slight wear in the caliper where this contact happens. Normal I assume.
(Gen 1)
(Gen 1)
FZS 1000 Gen1 (2003)
Tiger 900 GT Pro (2020)
Tiger 900 GT Pro (2020)