This was going to be the net effect of giving martials more to do. Well, to be more specific, giving every class more to do. The fan base decided long ago that "I attack" isn't sufficient round to round action economy fun, so every class has gotten more tactical and thus more complicated. The fighter is going to hit the foe with two weapon mastery properties, the rogue with sneak attack, cunning strike and mastery, the cleric will use his channel divinity and cantrips and the wizard is going to cast a summon spell all while chugging a potion. Yeah, that is a lot going on in a single round of combat, but this was what the community wanted: we rejected the simple "champion" style classes and opted for the tactical options, so we're here now.
Now I'm not going to say it was better when all a fighter, thief and cleric could do was make attacks and the magic user and cleric sometimes cast a spell (but rarely multiple times per fight) but it was sure a lot easier on the DM to track.