I don't owe anyone anything.
Coincidentally, Riot doesn't owe you a specific time to queue up.
The whole reason this system exists is to prevent people from AFKing into the game from champion select. If you disappeared between clicking accept and champ select, first off, you have to be kicked since the system doesn't know what champ you want. Second, you wasted everyone else's time since they had to re-queue. Third, better that you get kicked out at champ select rather than wind up away in the game.
Pay attention next time and quit whining about a 15 minutes timer.