The author remixed this model.
After installing hero me gen7 on my Sovol SV01 with DD BMG I noticed that it's quite wobbly, I could tilt the toolhead back and forth quite a lot.
Nevertheless I gave it a try and actually had issues with it. The slightest resistence the nozzle encounters makes the toolhead move which results in ugly layerlines.
For the remix i just extended the mount back to the x carriage plate and added a hole to screw it onto the plate. Works like a charm.