According to the Factoriopedia entry, huge asteroids spawn when the evolution level is >0.81, and the warp-ground-platform-8 research sets the evolution level to 0.8, so it should not result in huge asteroids spawning.
However, it actually sets the evolution level to 0.81.
https://imgur.com/a/VOxFAaf
This wouldn't be a problem, except
https://imgur.com/a/GmEhO2A
and
https://imgur.com/a/1ZwXiI4
The create_asteroids function in control.lua uses the wrong get_evolution_factor function (it should be using the mod-specific one).
There are also 2 other locations in the file where the default get_evolution_factor() is used.