I was explaining how the current system works, and one way that it might be rebalanced. I'm wary of these combo counter changes. I'm excited for making the combos easier to perform, and more seamless integration into the regular gunplay. You're right, we have no real information on how Blood Rush will work, but personally, I hope that the combo counter is relatively untouched. However, I do want to see the effectiveness of the Maiming Strike/Blood Rush reduced. As it stands, Maiming Strike with Blood Rush on an Atterax deals 22.5k damage per spin attack at the 1.5 combo multiplier. That's just stupid. And it scales up to almost 100k per attack by the 3.5 multiplier. That's excessive, and with the changes I proposed, at that same 3.5 multiplier, you would still deal 35k damage per spin, and 23.7k per regular attack. I feel like that's still more than enough to deal with normal content.
TL:DR, If Maiming Strike applied after Blood Rush instead of before, you would still be able to 'kill with melee at maximum efficiency.'