The image is very confusing. Too close up, and it looks like a beach with driftwood or some rotten wood laying there.
Gypcrete can be relatively hard on it's surface if it's poured correctly and has the sealer on it. That said it's soft once you get past the top surface.
Soft is a relative term.
The photo again shows no scale to determine what we are looking at. Looks like there is an 18 inch piece of rotted wood in the photo............... but nobody uses wood chunks as a filler in concrete or Gypcrete. Gypcrete has fine aggregate and the image shows what looks to be large aggregate. Even light weight, pumped in concrete would probably have smaller aggregate that what's shown.
Like I said, the photo is very confusing.............. looks like another planet because it includes no visual references as to the size of what we are looking at. Another photo or two would help a lot.