I only watched some Pointman and Pushervids as I'm an absolute Eraser-noob myself, but you definitly got some nice runs in there!
I'm going to try and dethrone you now on that slowstyle song
Just to see how I do in comparison.
You do have pretty high skill-rates, but I must be honest, they somewhat surprise me. While watching, I felt at several times you should try focussing on Chaining more - building them higher and keeping them longer.
Keeping a chain almost always >> clearing your match! If you DO know the chain is a lost cause, you can let it go, but otherwise, you might try gravity stacking (putting an unmatched block on top of your match which will drop down and keep the chain going). This applies to Pusher, of course (as said, I haven't watched your Eraser vids).
When you are in an area with a bazillion blues or purples (especially purples), don't fill three columns with a large purple match when your chain isn't all too high. It's better to keep pushing all these excessive purples and blues in the middle column, force clearing it all the time but that way also extending your chain bonus all the time. When you get back to the hot colours, they will be worth a lot more.
Also, I voted "Too much Eraser" because too much erasers.