globalstar as a corporate entity is in such a weak and precarious financial position (due to its near obsolete satellite tech and existing network), with no money to fund the many hundreds of millions needed for a new build+launch campaign, that any partnership of this type is a life saver.

without this deal it would be inevitable for the company to get acquired and broken up for just the value of its operating and spectrum licenses.

Apple also appears to be taking an ownership stake in the company so that probably aligns the incentives and reduces the chance of them cutting and running.