They're catering to their market. The flipper zero already has games on it. This is taking it a step further.
Additionally I'm sure people will discover loads of use cases for this add-on that has nothing to do with gaming.
Additionally I'm sure people will discover loads of use cases for this add-on that has nothing to do with gaming.
Edit: I guess you could use the D-pad and the gyroscope for two sets of axes, but that feels dangerously prone to accidents at best.