I will just dig up this thread as "I was right".
By looking at champion.gg data (which are fetched from Riot Games API) Urgot have:
51.46% winratio - bronze (quite low for this league)
50.53% winratio - silver
49.71% winratio - gold
48.06% winratio - plat
47.82% winratio - plat+ (very low for this league)
Which places him at 49 out of 55 toplane champions
This data shows that the more skilled enemy is, the more useless Urgot become.
Don't think that what I wrote above applies to every champion, if you check lee sin then you will see that his winratio is lowest in bronze, and highest in plat+ #mechanics