It might result in improved clarity and minimal ringing, once those small drivers got "relieved" through such a relatively high, high pass filter
The FM8 is a special case, as it is intended for use up to 250 Hz: this makes sense with main loudspeakers that have relatively small drivers to reproduce the bass region.
The synthesizer is however equally suited to experts in the field: operator details and the full range of advanced, editable parameters are all available and accessible.