I honestly don't mind if they just replace thieves' tools proficiency with slight of hand proficiency.
*sigh* I already explained the problems with that in the OP. Did you not read the whole thing?
The Ranger's "Urban Tracker" says it grants TT proficiency, but it does NOT get Sleight of Hand proficiency. If TT is part of Sleight of Hand, Urban Trackers should get it automatically. If TT proficiency is a separate thing, then there should be no issue giving it to Rogues as a class feature. EDIT: Some people say that Urban Trackers do get Sleight of Hand in-game, but Character Creation does not indicate that, which is why I thought they didn't. That's clearly a bug.
If TT is part of Sleight of Hand, it screws over Rogues because they are losing a class feature
FOR ABSOLUTELY. NO. REASON. AT ALL. If they want TT prof. - which they will, as it is THE single reason to play as a Rogue - they are forced into taking Sleight of Hand as one of their proficiencies, whether they wanted to or not. And yes that is a problem, especially because character creation does not tell you how to get TT proficiency.