It's really weird that you only get the reward for your highest tier and the ones below aren't included.
So if you wanted gold framers kit you would need to intentionally stay at gold and not higher. I initially wanted the gold framer kit because it looks the best imo. Only grinded more because i expected it to be included.
Now i start at diamond tier so i would have to intentionally lose to get to gold and get what i want at the end of the next season.

This system actively discourages you from playing ranked pvp.