There are plenty of compelling business decisions including from the developer houses themselves.
Development houses now have an opportunity to bring their software to a larger market share (iPad, iOS and MacOS) whilst maintaining just one code base.
Development houses would also have much stronger piracy prevention (same kind of benefit that enables console games to function).
Development houses would have much stronger control over the running environment (preventing adblock, preventing VPN region bypass etc...).
Development houses would have much more control over updates.
Surprisingly just like the now defunct Mac Servers, Apple doesn't really care about the high end hardware Mac platforms. They only care for those graphic designers/video editor/MS office crowd and their software is coming in iOS forms.
The developers that I hear from have different opinions than what you're expressing here. Many want direct relationships with their customers, for a start, and if you want that, the App Store is right out. And I can't think of a single developer who would say they "would have much more control over updates" if they delivered them through the App Store. (They'd say "oh, honey, no," after they finally caught their breath after the laughing fit.)
As for "Apple doesn't really care about the high end hardware Mac platforms," well. It's possible that they rolled out the Mac Pro just last year as an elaborate ruse to distract us from how much they don't care about the Mac Pro, but it strikes me as relatively unlikely. (And if you think the "graphic designer/video editor" crowd, either users or developers, is on board with moving everything to the App Store, oh, honey, no.)
Development houses now have an opportunity to bring their software to a larger market share (iPad, iOS and MacOS) whilst maintaining just one code base.
Development houses would also have much stronger piracy prevention (same kind of benefit that enables console games to function).
Development houses would have much stronger control over the running environment (preventing adblock, preventing VPN region bypass etc...).
Development houses would have much more control over updates.
Surprisingly just like the now defunct Mac Servers, Apple doesn't really care about the high end hardware Mac platforms. They only care for those graphic designers/video editor/MS office crowd and their software is coming in iOS forms.