Matchmaking is very 1 sided

In hvsv Playing a round my 3 members were equivalent to the entire opposing team with each having 6-9 kills where I had 28 and opposing side got 3 target kills. The following round, 3 of their members were replaced and it became completely one sided where I had 5 (as Luke) and nobody on my side plus the 1 that remained had 0 kills and everyone new had 10-16 kills! We only got one target kill. And of course, I lost my entire team towards the end. Then jumped into GA action, top 10 on my side had at least 30 kills each; on the opposing side their top 20 had only ~8. This lasted for at least 2 hours playing. WTF.