Roland Digital Piano — String Resonance

Is that used in all of Rolands digital piano's?

The Generalmusic created this tecnology in 1996. GEM Realpiano PRO2.

I think Roland is just a gimmick to loot 💰. My 500$ NUX WK-310 has better sound, touch and resonance than that of the premium Roland digital pianos.

Such string resonance is also embodied by my Roland fa 06. That's the very point why I then love my Roland piano sound over my Yamaha one.