I don't think so, most likely we will need a mod for that.
Unfortunate, I was kind of hoping there would be a bit more of a cost to using the stuff than just requiring proficiency. Feels like casters really luck out being able to dump stat strength and still be able to wear 18 AC plate armor as long as they get the proficiency (which is quite easy assuming they grab a feat or take a single lvl fighter/ranger/certain domains of cleric dip).