People int he past have ALWAYS ragged on junglers for getting smite(or even ragged on people for jungling). This is because by and large, people don't play TT enough to know anything about the strats behind it.
Smite is less useful on the map...however, it will STILL be gamechanging. In a game I played on it testing it out with someone from my threes team, his spider secures/steals cinched the game for us. Was it absolutely necessary? Maybe not. However, getting three or four spiders was easily worth a single summoners.
Noobs will noob, and dedicated TT players will know whats up. That is, if they care about it that much after it got dominionfied.