I come from a game where multiple skills have a chain skill followed right after (Aion). If they want to decrease button bloat, that's one way to do it, but also gives room for more skills to be implemented, otherwise looking at the direction they're going on now, gonna feel like skills will be obtainable every 10-15 levels going from 7.0 forward. I think adding chain reaction like in PvP mode is a better solution, rather than removing skills altogether.