The 4k random is the main reason to buy this Optane Memory. I guess the fact that for day to day use, most consumer workloads are where Optane is strong, which is a mark in this thing's favor.
But in other regards, it doesn't do much better than SSDs. Yeah, 32GB is too small. Even many games are bigger these days than 32GB for example. It is really expensive nad hard to justify for what you get though. You could get a much bigger TLC SATA SSD for the same price.
It might be interesting to see what Micron releases under the QuantX brand - same 3D XPoint, perhaps a different controller though.