Yup, many have done that already. I can try to find pics if you’d, but I have seen more than a handful of hacks with removal of the leveling screws and adding foam, inflatable balls, tennis balls and other compressible material at the outer feet.
Some have added a wood dowel or PVC pipe under the middle leg for a firm pivot and to locate it more accurately under the center of the bike (because the middle leg of the Kickr is NOT under the bike). Then add your choice of “spring” under the outer feel.
I am quite confident in guessing that Wahoo also saw some of those and worked up their own version, to get into trainer motion, with minimal effort.