I was shocked (and miffed) like most everyone else when the new super weapon came out and all the rem weapons went from best in show to runner up. Think about it from a different angle and that can change a lot of things.
New delve weapons will make getting the r/e/m much easier to obtain! Soloing Dynamins for currency? Haul in way more for yourself (and to sell) with a super easy delve weapon! Need 30k Alexandrite for that mythic? Way easier now. VW spam for HMP and rift items becomes even easier with a group of delve weapons.
We need to think about what good can be done with these new weapons instead of how we are acting now. Yes the current R/E/M need a boost at 99 to be on par with delve weapons but once that happens things will pick back up.
The items needed to make r/e/m 99 will become much easier to obtain, prices will drop, and more people will have them in the end. Everybody wins!