Furthermore why not just build them for shorter rigid forks rather than give the option of sticking in something with travel or sus-corrected rigid. Surely that would be stronger?
Basically why don't they just ride a big wheel BMX?
Same as other areas of MTB.
Full sus jump bikes are a thing too
Hard tails are going to be faster because you can pump and lose less pedal power but suspension is more forgiving.
Big jumps need strong wrists if you have a rigid fork
Why do MTB park or jump (specific) bikes have sus forks?
Example: https://www.pinkbike.com/photo/7917232/
Furthermore why not just build them for shorter rigid forks rather than give the option of sticking in something with travel or sus-corrected rigid. Surely that would be stronger?
Basically why don't they just ride a big wheel BMX?