don't really agree with that, you should EQ both tracks with the same frequencies so that your mix doesn't lose energy.
I'm not saying the technique of the above diagram isn't good, but when you always have your mid at 12 o clock and switch trebles right before the drop, you'll eventually lose energy after the drop.
Some tracks need an adjustment on the mid so the snares of both tracks are on the same level (if you know what I mean).
Some tracks need an adjustment on the treble so both tracks have the same kind of frequency.
Sorry I you guys don't understand, it's really hard to explain via the internet.
Try and play a track with the trebles at 13 o' clock, then mix in a track with the treble at 12 o' clock, you'll hear the difference.
I agree that treble on treble sounds kinda sloppy, but with the right mixing technique you won't hear a lot of difference.