You make a great point, but I think it’s even more important in the datacentre.
Broad adoption of ARM in the datacentre could realise some huge energy efficiencies (> 2x ?) and lower costs which could have massive impact. This is a really responsible goal.
btw, this was recently discussed in this Topic: Require ARM64 Support - #3 by david suggesting that several dependencies (gem binaries) are not available outside of x86