So not to hard disagree with you but to be honest the selfish DPS thing is starting to weigh a little stale for me as well. It may not have to be in line with BRD or DNC levels of utility but giving MCH nothing (when it used have a decent kit) makes the DPS gap hurt just so much more, you need to give Selfish DPS SO much more just to keep them in line with support/utility jobs the moment you step into any kind of coordinated content.
I dont want to devalue your stance, but I do belive we are starting to see the cracks show in this type of design philosophy for dps. If it all comes down to potency then the design is fundamentally boring and adding potency will simply keep it boring.