Those guys grew up playing in the Motown studios, where the amount of compression that they used on the tracks meant that they had to play that quietly to actually lay down a track - otherwise, they would peak all of the channels. Often blankets were laid on all the drums to further dampen everything, but it was a great sound.
Luke, I was looking at a couple of your videos earlier and I was thinking about the snare. It seems to me that a lot of younger drummers in your specific style (towards the 'extreme' side of meal) don't hit the drums hard because they're going for a lot of finger speed. I don't have an issue with that per se, but I do think that it can affect other areas of their playing when finger speed isn't required. This also seems true of you to some extent - this is noticeable on the 'Dubstep' mix video - I just don't think you're drawing quite enough from the snare. It's a case of being appropriate for the style of music you're playing.
You're a better drummer than the vast majority of people in your style - and I've said that before - I just think that you could become a more rounded player by just tweaking your technique when appropriate.