resets are boring. Noone wants to see a game where a team just turtles it out to get a free redo.
This idea is like the kid playing soccer at school who misses an easy goal and then goes and cries "do-over someone messed me up it's not fair etc"
If a team wins mid, they should be rewarded for winning mid. The other team shouldn't be rewarded for losing mid and then just sitting down and making no attempt to push out.
Of course, that's what'd happen if the timer was maybe 6-7 minutes long (or less).
Timer at 8+ minutes long honestly makes 0 difference. If it goes that long without either team budging, there's a high probability of it resetting at 10 minutes anyway. But you might as well give them that chance, doing the reset 1-2 minutes earlier isn't going to improve gameplay tenfold, despite how amazing you think this idea is.
There is no reason at all to change the timer honestly, resets are shit, and 10 minute timer helps prevent resets.