The basic movements used in typing aren't too different from the basic movements involved in playing the piano. With the exception of course that pianists typically need to apply far more force in order for the key to actuate, and also need to incorporate a vast repertoire of movements into their playing which typists will never use. Nevertheless, the basic positioning and usage of the fingers, arms, and hands is similar.
Many pianists develop RSI, and many do not. Similarly, many typists develop RSI, and many do not. People can ask all sorts of questions about whether the making the key action lighter or developing a different layout might help, or whether the hard landing of bottoming out on a plate would be contributing to it.
The answer is the same in both cases. It is the technique at fault, not the equipment. If the technique is poor, then changing the equipment may help, but it won't get to the root of the problem. If the technique is good, nearly any set of equipment is safe to use.