I suppose I am the target market for this and I will try it and I am pleased they haven't tried to price it high. The quality looks quite poor for now but Apple sometimes - not always - sometimes really sticks with things and improves over and over until it ends up with something good.
Longer term there needs to be a pattern established of new titles coming. One of the problems gaming on the mac had was that buying them from the app store many didn't get updates and it broke compatibility. People are much more likely to pay if they think there is on-going commitment.
They need to get some more famous titles to get the average person involved. They should find a way of getting Sega or Nintendo to take a more active role as well as appeal to older people with more retro 80s/90s games. Look at the huge sales success that has been the re-issued classic consoles like the SNES and MegaDrive.
It has been really quite a strange thing over the past 20 years to watch apple consistently ignore gaming as it grew and grew. I understand why they did and in some ways it's an imperfect fit but they are one group who really will keep buying new hardware so maybe the penny finally dropped with apple.
There was a feeling as I was watching the advert that it looked a bit SJW like, the sort of development one gets if one puts a priority on "inclusive" gaming instead of quality, and then they declared, as if it's a positive thing, that one of the games features an "all female cast". Ugh. Apple still has a long way to go to understand gamers. Still I won't quibble, happy to see them start this.