Yes, maybe it is too much to ask.
Windows is a general purpose OS, which is why it dominates two enormous markets: business software and games software. Microsoft will usually err on the side of developers because of this. The two companies' philosophies will of course be different.
If MacOS had similar mindshare in those markets, Mac developers would probably ask Apple to avoid overnight changes like the discontinuation of x86 Macs.
MS still provides security updates for Windows 7 despite its EOL occurring nearly 3 years ago. This is because many organizations still run critical software that they cannot shift away from, for whatever reason. Apple doesn't have to do that because no hospital or airport is running their logistics on MacOS.
Even with all this baggage, Windows on ARM has been available in some form since 2012's Surface RT.