Train, skill level and leaving

Example of this game's SBMM at work. Played for the last hour or hour and a half. Wanted to do 3 easy dailies, found out dailies can't be done in LTMs. So did 2 normal matches, first came in top 5 and second top 3, but finished the dailies, so wanted to get to 50 apex packs (had 48) so I figured a couple of games...

I won train 4 times in a row, all with 800-1500 dmg, okay no big whoop. Teammates also did anywhere from 500-1600. Suddenly I came in a game with a predator and a diamondor... (made it work :P). So the diamondor keeps dying fairly quickly while the predator survives, I die and observe him... meh nothing special. Nothing that would make me believe he's a real predator. So we lose... not even 1 single round won. Diamondor 400 dmg, me and predator in the 700's.

Aaaannnddd... there we go, 3 games after eachother all of a sudden low lvl ppl who don't know what they're doing. At least in all 3 teams 1 teammate kept dying pretty quickly and I'm like "really game? I win couple times in a row, get a 'high skill' team, lose and suddenly you put me in teams where the average lvl of my teammates was around high 20's or early 30's?! What kind of injustice is this".

In one team a guy didn't even know that he had endless health/shield cause we were capturing and there was likely only 1 person still somewhere but the guy stayed at 40 health for like 1 minute... was amusing to see actually, especially after me saying that he had endless health/shield he kept running around the train with basically 1 wingman bullet health...