The GPLv3 was intentionally designed to create the risk that Apple and others are trying to avoid. IBM doesn't have that risk because they don't sell hardware or software packages, they sell expensive service contracts.

Red Hat, a division of IBM, literally does almost $3B of revenue selling a Linux distribution that includes almost the entirety of the GNU corpus, all GPLv3. IBM bought them because they already resell packages and contracts based on the same stuff and wanted the vertical integration. So yeah, you buy an expensive service contract from IBM and it comes with (gasp) a giant license for GPLv3 stuff in RHEL.

That point is silly. If what you say were true, then the purchase would have been poison. It's not true. It's FUD. And it's hilariously the same FUD that people were flinging around in years before most of the existing FUD-flingers were even born.

The corporate risk profile of Apple vs IBM is so drastically different that it's not even a serious comparison.