People seem to forget quickly but it was very similar when they switched from PowerPC to IntelAn interactive 3D globe doesn't require a neural network to display. Google Earth has had a 3D interactive map for almost fifteen years.
They NEVER have to explain anything - it's their choice. However, just because that is the case doesn't mean that people can't be rightfully angry about it.
Apple is selling devices TODAY that aren't capable of the full set of features in their latest OS release. This isn't a "we finished our transition to Apple Silicon - these new features will only be available for Apple Silicon Macs." This is them continuing to sell Macs starting at $1800 USD that will immediately become obsolete as it relates to running the full software stack.
That's not to say that some of this stuff does seem to require Apple Silicon support - like live text, etc. But that doesn't mean consumers can't be angry about this.