While better specs are always desired, the vast majority of people never experience any issues whatsoever related to lack of RAM, yet they still want more just because. . .why? A completely different OS needs that much? In fact, the only complaints I have ever seen about RAM is from Safari and multiple open pages. I can't think of one other app that has an issue with RAM (and my current iOS app count is 1,079 owned and tried over the years) - because devs know that the iPhone has 1GB of RAM and they write their apps accordingly. But, like people who demand high pixel counts on their cameras, even though they never see the difference, tech suffers the same "feature want, even if not needed" syndrome.
1GB of RAM is enough until its not enough. The vast majority haven't reached "not enough" yet.