Whether or not the trials players in question are scared of playing people of similar skill level, it doesn't negate the fact that the game mode of trials is specifically for finding "players that never lose" as per Destiny Lore. So what would be the point of having sbmm in a game mode which needs all players to be in the same pool in order to work? The argument that average or below average players will have an easier time and not have to work as hard to get to the lighthouse as the best of the best, is an accurate and valid argument. Not all players are equal. Not all players will beat the raid, because they don't have the necessary skill. Not all players will get to the lighthouse because they don't have the necessary skill.