It only "doesn't need it" until Apple puts it in. Then, it will need it and wishes for any other amount of RAM- including the former RAM standard- will be entirely wrong.
In another thread, a rumored new

TV doesn't need 4K. There's 50 reasons why, which are pretty much the very same reasons why- when gen 2

TV was the current product- no one needed a 1080p

TV.
In another thread, NFC technology was stupid or a gimmick that 99% don't want or need in a phone. Then, Apple adopts NFC and we want to boycott stores that won't let us pay with Apple Pay.
In another thread, iPads do not need front-facing cameras when iPads were the new thing. There were 50 passionate reasons why such a camera would be stupid in an iPad. Then, Apple rolled out iPad 2 with FaceTime and the biggest reason to upgrade was... can you guess?
<anything not in current Apple hardware for sale> is "not needed" until Apple puts it in. Then it can magically become THE "shut up and take my money" reason to buy the new model.
I'm with you on this particular topic. A multitasking, 64-bit OS with pinched RAM almost doesn't make sense. I hope a "pro" model brings more RAM too. It will probably be priced so that unit cost can't really be an excuse.