The risk of physical damage is so incredibly low already, and energy use of RAM is also incredibly low, so neither of those seem important.
So that leaves performance, which I honestly haven’t found good numbers for. If you have this, I’m very interested, but since RAM speed is rarely the bottleneck in a computer (unless you have specific workloads), I’m going to assume it to be a marginal improvement.
So really, I guess “smaller” is the best argument, and I honestly don’t care about another half centimeter of space, it’s really not an issue.