While I appreciate WG's efforts to try and introduce new players to the game in a more "friendly" environment, the restrictive matchmaking for tier 3 and 4 ships has absolutely wrecked tier 5 and 6 matchmaking. I can't remember the last time I saw a game where I was top tier in either tier 5 or 6. I concede that there is likely some confirmation bias here, but I see it in my tier 7 and 8 games as well, where I am getting a disproportionate number of games as top dog against tier 5 and 6 players.
I don't normally complain about matchmaking, but tiers 5 and 6 are the sweet spot for premium ships. The vast majority of all premiums sold by WG are tier 5 and 6. Constantly being at the bottom of the food chain doesn't make me want to play these premium ships and to be honest, I don't think I'll be getting anymore 5's or 6's until the matchmaking issue is fixed.
I think a much better solution is a series of minor buffs to the tier 3 and 4 ships that were having problems. Or even a matchmaker based on games played where people with less than 350 total games (or whatever number) who queue up in a tier 1 through 4 ship only see similarly (in)experienced players. I think that new players would benefit from experience based matchmaking much more than from restrictive tiering. I see tons of very very good players trolling new players in low tier ships. I've been known to do it on occasion (though very very infrequently), myself.