i mean, i kinda agree with you but the problem is, PVE has both mats/gold AND hmcoins, why PVP should be different? they MUST add both as well, mats/gold AND hmcoins as season rewards exactly just like PVE imho.
that would be really easy to fix by just adding some more pvp quests as daily, so people can choose either pve or pvp to spend their time and farming mats/gold/exp/hmcoins.
i agree also here but, wintraders on 6v6 were really rare, at least on gold games, and they would appear on bronze/silver only on the last days of end season, where most of the players used to be placed already high on rankings, and it was just a way to play with your alts and farming some more hmcoins as well;
anyway, back then you couldn't get 4k gold by doing 3 dailies on alts every 2 days, and those wintraders were there on 6v6 just for farming hmcoins, now NOONE will bother spending time and accounts by trying to wintrade for hours just to farm 2 venture tokens anymore, trust me, when you can spend 5 minutes doing 3 dailies on each of your alt and get 4k gold.
also, they could simply fix that by removing hmcoins from just being top 300, exactly like PVE ladder right now (actually you won't get any hmcoins if you are below top 100) and trust me wintraders won't bother anymore because that will become too much time-consuming.
The only pvp mode that will remain kinda easy to wintrade would be 1v1, but i rather prefer those changes instead of not being able to even do 1 game for the entire season!