I agree fighting more than one enemy sucks due to the different timing in their attacks, which makes blocking/parrying feel useless, however, one race makes melee combat not bad. The Chang, their racial skill makes melee combat much better, because then you can just face tank all the hits while going crazy with attacking yourself.
Even with the Chang and their really good racial trait combined with rage it isn't enough the further into the game you get. Playing melee as solo just isn't worth it because of how much work you have to do to get less than what you'd get from the other classes just because of the range alone. Enemies deal more damage than you, have more defense than you, have more range and ranged options than you, and honestly the fact that nearly every enemy has decent range makes it difficult just to get in without getting hit by a random shot that takes 20% of your health away instantly. At best you get hit once and lose a bit of health just trying to jump in, at worst it cancels your air attack and you get nothing out of it. Melee just doesnt have enough defense or deals enough damage for the danger you have to put yourself into which kinda forces you to play hit and run where your time to kill is so absurdly long that magic or bows would have finished the fight in a fraction of the time. Even if you were to play multiplayer and factor in the extra allies I don't imagine tanking in this game is any fun with how quick you die and how fast your stamina breaks.