I agree to an extent, but I think a better system would be where players who never played ranked before, or are only a few games in, should be limited to bronze / silver tier opponents only. Being Gold means you are beyond being a new player, and having new players face players who are above their skill level, to that extent, is somewhat unfair. This would only apply to players who have 30 ranked games (solo/duo mode only) or less and have never been a previous ranked season before. Said players would also not be allowed to duo with anyone higher than silver also, until they meet their 30 ranked game quota. That way they have a good basis for how good they are compared to others. The highest rank the 30 initial games could reach is silver 1 as well. However, if you notably are better than silver 1, after your 30 games are up, you get a chance to skip a few tiers if necessary based on a placement decision made by the game based on how well you have been preforming (kind of like a final adjustment).
These 30 games would also not count towards your 10 prelims. They would start after them if you failed to reach gold 5 in the prelims.