Funny thing about games: most revenue happens soon after release. It's like movies. A game from several years ago usually has low ongoing revenue, so there's little profit in updating it for a new OS. Many Mac games will just die. Especially indies, where the creator might have already moved on. Do you own any nice but not very successful Mac games? They'll die. This move destroys the reputation of Mac as a game plat…
Time to run them in a VM with and old OS the same as older games?
Not that I care, and note the DMCA/property law has a specific exemption for defeating copy protection if you bought the thing. But it is more work than you make it out to be.