I haven't watched the video you linked because Maxtech is a terrible source of information, but I assume it boils down to 16GB being better than 8GB. No one is disputing that. If you buy a machine that's underspecced for your needs, you made a mistake. If you buy a 32GB machine when you need 64GB, you'll face similar issues, but that doesn't mean no one could possibly get by with 32GB, it just means you bought the wrong computer.
What people are willing to pay for something doesn't always come down to $/Gb of RAM or storage. If you're not happy with this config, just don't buy it. No one is forcing you to. Buy a specced up Pro or Max config. Buy an M2 Air. Hell, buy an M1 Air. Look at your budget and figure out what your actual needs are and buy a computer that meets those criteria. Why complain so much about a machine you clearly never intended to buy in the first place?
As I have pointed out, defaults matter, not one of the default configs come with more than 8GB of memory. I know you don’t care if certain things improve over time but that logic could have kept us at 2GB Of memory, or even 4GB of memory. At some point it starts to look absurd. How long can Apple ignore memory density progress for? On the iMac it seems like 11 years and counting is the answer. The entry level MacBook (Pro)* and base Pro level MacBook Pro** are up to 7 years and counting since the last memory increase. The Air is doing a little better at only 5 years.
Let’s give Apple a bit of credit, the base 14” MBP finally comes with 512 GB of storage which I think is a great move and deserving of praise.
They somehow managed to make the iMac configs ridiculous though. They charge $200 just for the final two GPU cores, and then another $200 on top of that to get from 256 to 512 GB of storage.
I will say, storage matters more than memory to me, storage is easier to fill up especially as data accumulates over a lifetime and it is nice to see the entry level mid range Mac notebook finally starts with 512.
* Note: The entry level 14” MacBook Pro with M3 was preceded by the 13” with two Thunderbolt ports model which received 8 GB of memory in fall of 2016 - 7 years ago.
** Note 2: The base pro level MacBook Pro is the M3 Pro and was preceded by the four thunderbolt port 13” MacBook Pro, which received 16 GB of memory in 2016 at its introduction 7 years ago.