A timer in squad battle is the most ridiculous thing ever. There have been plenty of times where I was in a standoff and the timer ran out, and I'll never know if I could win those matches. The last game I played it took a while to gain the upper hand, but I did and the timer ran out just as I was finishing off their last character. Why?! I clearly had the upper hand, I had all of my characters and they had just one. Why should we both lose? There are plenty of games where PvP doesn't have a timer. And any games with PvP that do have a timer are because you're facing off against actual players who are less patient than bots. But you're not battling players in squad battle.
You either you win or you lose, there shouldn't be a tie because time ran out. What is that even adding to the game? A sense of urgency? It's not like I'm sitting there planning my moves before I use my abilities, I am playing as fast as I can. If you're up against an enemy with around the same power, between taunt and heals you're going to tie a lot. Both of us losing because we're equally matched is really silly. Please reconsider this mechanic. At the very least don't let us tie, give the win to the player who had more characters alive when the time runs out. And about the problem of going AFK mid battle without a timer, just have it kick the player from the squad battle after a certain time of inactivity.