I understand wootings desire to limit pressing multiple keys from one keypress as that is generally cheating in games, but when it comes to the OS, many setups of keyboard usage utilize awkward keybinding combinations for global user hotkeys that will not override apps. These are made convience through the use of super-mod keys which contain multiple mod keys:
Meh = Control + Shift + Alt
Hyper = Control + Shift + Alt + Winkey
With the introduction of the HE2 we have this wonderful extra thumb space that would be great for Meh/Hyper, sadly we can only do this with DKS which means we cannot combine it with mod-tap!
Having the ability to mod-tap Hyper could be a total game changer, for me personally I really like to use Hyper for fast window switching IE: Hyper+S opens slack.