Even though you can still roll the base space age planets with this mod, it still seems to break mods that depend on the existence of those planets on load despite these planets not being removed (Nauvis, Gleba, Vulcanus, Fulgora, Aquilo), being unable to pull from these planets map gen settings since at some point this mod wipes those settings.
Some examples:
Enemy Race Manager: https://i.imgur.com/C8RoY8Z.png
Dredgeworks: Frozen Reaches: https://imgur.com/cwPEzGb
Cargo Ships: https://imgur.com/ZJPZ4Sj
Wooden Vulcanus & Wooden Aquilo: https://imgur.com/rTfCIWLhttps://imgur.com/03yi4hE
Factorissimo 3: https://imgur.com/ubiLO2T
Tiberium Dawn
Also seems to override other planet starts such as lignumis, or the limited amount of planets supported by any planet start by other mods, but it seems like that part might be intentional if not mildly inconvenient due to the thin configs.