This should not be allowed: I didn't play a specific player in my lobby the entire game

Using the MetaTFT app, I've been tracking my own matchmaking for a while, and have started to notice many egregious matchmaking examples (EX: playing another player in the game only once, especially impactful if said player was weak the entire game). This has always been a part of TFT, but this recent example is the first time this has ever happened to me, and I feel like the possibility of it happening just shouldn't be in the game.

Here's a link to the match history where you can see the matchmaking: https://www.metatft.com/player/na1/Jaway-wuwei?match=NA1_5207715712&tab=4&round=0

In this specific example, the player Slayingshot died on stage 4-6. He played contested Urgot reroll from a 5 loss opener, didn't hit, and was 8th place the entire game barely winning any rounds before dying. The fact that the entire lobby got to play at least once or twice against this guy when I didn't a single time literally put me in a position where I was probably down 1-3 lives on every other player.

When these things happened in the past and I only played against a specific weak player (like fortune/chem baron traits) once, I already considered it a low roll, but acceptable within the RNG of TFT matchmaking. But I think it's absurd that 15 rounds of TFT can play out, and I don't play against one specific player in the lobby the entire game. Is it even an 8 player game at that point? Even if that player died relatively early in the game, 4-6 is still 15 combat rounds. With him only playing 6 other players the whole game, some players even played him 3 times before he died!

Intuitively, it doesn't seem to be that hard to add some rules for edgecases like this, but maybe it fucks with the current matchmaking algorithm too much.

EDIT: To be clear, I understand the RNG of matchmaking and how it ties it to the principles of RNG in TFT as a whole. I'm not arguing that every player should consistently fight every other player the same amount of times. What's important to me is that like one of the comments mentioned, this is an 8 player game, and I should play all 8 players at least once by the time it's something like stage 4-5, when players generally begin to be able to die. I don't even think reducing the amount of available players in your pool to 1/2/3 for a single round, whenever you hit that guarantee if you super lowrolled, is that bad, when the game is soon going to reduce your pool of available players anyway at that point.