Its a yes and a no for me on this one. On the one hand, yes the loss of a charge action is a nerf for martials. On the other, 5e's flexible move lets martials move to places they need to get to and delivery their full offense, as opposed to a single attack in 3e (though about equivalent to 4e where you could move and deliver a power).Also in 4e every combatant has a charge maneuver giving them a longer effective range for their melee attacks. IMHO 5e debuffed melee martials and buffed the ranged combatants .... a lot.
I do think have a basic charge rule would be a good thing to add back in to 5.5