When will matchmaking be fix?
Every new player will have to start at a rating. Maybe you are just at the rating similar to the starting-rating? This does not show if the matchmaking works correctly or not.
(f.e. in a similar mmo players are starting a 1500 rating, while the good players will end up playing 2400+, but there are still players ending up with a rating <1000)
You may just have to get out of this rating level. Maybe playing once with a full group?
Please also remember, that the rank does not say anything about their tournament participation and their position on the ladder. Maybe the rank 30 player did also just played his first round of tpvp.
Ofc the matchmaking might also be defect, but you can only tell this, by looking at the position of every one in the ladder. Without the position information your attachment is useless.
Primoridal (S1) & Exalted (S2) & Illustrious (S3) Legend
until rating is visible there is no way to really know if the matchmaking algorithm is good or not.