Not necessarily but powers with the spell keyword, I have no problem with.I think it's more a case of special actions being like NPC class abilities, so Kelek has a special class ability to cause explosions, and then he has a spell list since he's a caster. You can Counterspell the spells, but not the "class ability."
Edit: For those of you who are arguing that these magical actions are spells and can therefore be Counterspelled, are you also okay with things like Malleable Illusions and Illusory Self being Counterspelled by NPCs?