Everything you write could also be said about Apple's marketing of 64-bit.
Marketing 101 says focus on your strengths and avoid talking about weaknesses.
The reason Apple doesn't talk about RAM is because it is a weakness compared to the competition.
IMO, more RAM is more valuable than 64-bit but you wouldn't know that listening to Apple.
32-bit 2GB RAM > 64-bit 1GB RAM
And yet the iPhone holds more things in RAM than a Note 5 with twice the RAM.