Let me tell you about how Urgot is 'terrible to play against'
Those of you who frequent the boards - go on, ask yourselves: how many threads complaining about Urgot have you seen? I have seen none, despite his sudden spike in popularity and pro plays.
And you know why? Because there are lots of champions much more frustrating to face. Go on, ask your average player what opponents they hate the most. I'll tell you.
They... no, WE, the players, will always take Urgot over:
Champions who can mess up hard and still be near impossible to punish due to massive amounts of mobility. Especially LB and Zed who also burst someone and then trolololo back to safety.
Champions against whom you aren't allowed to make a single slightest mistake - since it will lead to them getting out of control. Special mention to Blitz who can single-handedly (pun intended) win the game over that slightest mistake.
Champions overloaded to the point that when you lose you never feel like getting outplayed - but getting outkitted.
(Yes, Nida is an annoying bitch.)
Seriously. Fuck this guy. I'd play against 10 Teemos before 1 Nunu.
But are any of them getting hit? I don't think so. And I think I understand: Urgot is a playstopper. Think about it. He falls off late, but still has his thing - making one person's life a misery. Melting their armor, damage and speed and ultimately swapping them to their doom. That stops even the flashiest of champions dead in their tracks. HE IS THE DEFINITION OF AN ANTI-CARRY. Master of peppering one person, be it with damage in lane or debuffs in teamfights. And is still more fair than assassins: Urgot may swap and debuff your carry, but LB or Zed will delete them and back off in a second .He is the only real anti-carry we have. And he should stay that way.
Can hit you with zero retaliation. Actually, that's the entire point of the champion.
Oh, guess I'm not hitting skillshots this game.
Oh, guess I'm not having fun this game.
"Poke? What's that?"
is healthy and balanced (pre 5.2)
and 
's hasn't been played for so long that nobody really ever knew how strong he is and how good at doing what he does, nobody had formulated any strategies vs him, nobody really knew how to play against him. For whatever the reason Riot considers his kit worse and more archaic than
and decided to screw him up real quick before he actualy sees legitimate play to the level the 3 categories you made do.