The EK is the fighter that wants to have a little bit of magic to give it some versatility and flavor, without sacrificing the martial prowess that comes with going full fighter. It's only a 1/3 caster compared to a wizards full caster, so it doesn't get access to the full magical capabilities of a wizard. That would be a disservice to fullcasters.

There are important spells missing from EA so far. All spellcasters feel this, so martial classes are a bit dominant. The EK is notably missing shield, which usually let's them wield 2H while still being almost impossible to hit, which the lack of heavy armor doesn't help with either.