I watched that video earlier, I don't particularly think martials are suddenly equal to casters because they have a few control options on tap. Prone can be detrimental to your party (as that video shows, when Eldritch Blast became a terrible option due to all the melee proning people), the weapon switching wasn't a balance issue (6 more damage on the round where the guy did 106, lol), and giving martials the ability to push a guy 10' on a hit is like, 2014 cantrip + invocation level.
If anything, to me, it proves that boosting martials is a good thing- the melee Warlock was not overperforming compared to the Barbarian and the Fighter.