This is ludicrous. Apple should still be forced to support cassette tape decks and 5 inch floppies. What if I want to run an app on an Apple ][e? I should be able to do that.
You can via emulators unless Apple break them with this move to 64-bit only. A lot of emulators for retro computers, arcades, game consoles, etc. are going to break and the community is unlikely to put in the effort to update them.