I don’t think the issue is whether it technically can be done - it has long been the case that many upgrades and service fixes that Apple doesn’t officially “allow” are technically possible (which is a large part of the success of sites of like iFixit). I think it’s more about whether people are comfortable taking a brand new Mac mini that they may have spent a lot of money on (and waited many years for
) and do the upgrade themselves, accepting the risk that if they damage something (worst case scenario being they turn it into an attractive paperweight, however unlikely that may be) with no recourse back to Apple. And I suppose that will depend on people’s skill level and confidence with making these sorts of changes.