Can someone tell me if I'm wrong about this statement?

Season 6 so far plays out like this: Whichever team loses the first inhibitor will indefinitely lose the game.

Because so far all of my match history this past week has been that. Games are ending at 20 to 25 minutes more and more and games are only stretching out to 40 if one team has a strong late game and can really hold it out or the team with the early snowball has no idea how to take advantage of it and end the games at 20 minutes. Can anyone else give me their experiences with these past few patches of Season 6? Just whenever that first inhibitor falls I know it's going to be victory for 1 team very soon.