Clearly this "two supports" game has you all worked up.
Look, just listen for a moment.
https://38.media.tumblr.com/240e11ae03b526dcd7bad5ed51b38dcb/tumblr_n33m21Jc3p1rmj8qdo1_500.gif
Don't get worked up over the meta. A metagame is a pattern that only emerges after thousand if not hundreds of thousands of games are played. A meta is simply, "over the course of X number of games, this strategy will win more than others", but that doesn't mean that in a single game the meta has to be enforced. In fact, sometimes changing up that meta can completely turn the game in your favor. In the long run, if that strategy starts becoming dominant (only because of the element of surprise) then the meta will change to account for it, and that will be the "new" meta.
Back in the day, we didn't have this set up. You could have AD mids, tank mids, fighter mids, mage mids. You could have 2 top and 2 bot. You didn't always have to have a jungler. And even though Riot has reinforced these roles, it is not the Be All End All of every single game.
Alright, let's look at your game. You had two supports.
Two supports is probably better than having 2 jungles. 2 junglers require a decent amount of coordination between them which you often won't get in a solo game. So you have someone lock in as a 2nd support.
This is not the end of the world. You could...
...Ask that the 2nd support go to top. You don't have a jungler, so instead send them top to zone out and dominate the enemy top. Most tops are melee, so while your top laner focuses on farming the lane, the top support can harass and poke and push out the enemy top. And since the support can provide additional vision, they'll be difficult to gank if they're careful. Against certain tops like Nasus (who really needs to stack his farm) or just item-dependent tops like Jax (who really needs to get his items rolling), this can absolutely crush their performance in the game.
"But the enemy jungler will get to farm"
So what? If the enemy jungle spends all of his time in your jungle, that means he isn't ganking your lanes, so that disadvantage you had of not being able to gank is now less present. Or, here's a novel concept...
...you could ward your jungle at the buffs or near the entrances, that way if the enemy jungler comes in you can ping for your team to come and help, get an easy 2v1 or 3v1 gank in your own jungle, kill their jungler and set them back even further.
Other things you could do with 2 supports:
Is one of the support a "mage" support like Morgana or Annie? They can actually build AP/mage rather than having to start with support items, and you just turned your bot lane into a kill lane.
Is one of the supports a "roaming" support? Someone like Bard, or anyone with really high CC like Blitz or Alistair. send 1 support to bot lane, and let the other support roam between the lanes, providing valuable assistance in a fight and helping your laners get early kills.
Or hell just push down the bot lane with 3 players and destroy their tower in <5 minutes, then you can go wander the map in a 3-man gank squad, catching out your opponents.
Will these work? I don't know. But here's the thing. Maybe they will, maybe they won't, but if all you do is leave the game and ditch your teammates, they will lose.
So take a deep breath.
Stop worrying about the meta, and
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