Imho trials shouldn't ever be scaled. Do you go into other MMOs and jump straight into end-game content at level 10? No, that's why it's called end game content. There are so very many different things you can do in this game prior to the top vet ranks, there's absolutely no reason that endgame content should be available to someone who just started playing. Experience the game first, learn how to play, and when we're all grown up and strong-like, then start doing trials.