Smite steals aren't fun, they are cheap. If your game needs that to have comebacks, you need a better comeback mechanic. I'd be ok if it was an anti-snowball mechanic where a smite steal nullified the big monster buff entirely.
Disagree completely, most regular sports have a element of a high risk high reward comeback element. Such as football you have the onside kick and the hail Mary. What you are going to disallow those plays because they should have fallen behind? No pulling the goalie in hockey? I mean come on man.