I guess it isn’t direct in the sense of A → B, but in my mind the radicals have a big impact on your ability to level up. If they had no impact, then I could completely skip them and still level up.
regardless, my point was that it is contradictory to Radicals have no affect on your level, only to explain how radicals can have an affect on your level. I don’t really care exactly how they change, my suggestion was just that they could write that more clearly so that a potential new user could understand how leveling works better. Essentially, to level you need to guru all of your Radicals, and then 90% of your Kanji. The requirements are more than just Kanji.
Hope that makes sense.