Thanks for this. That makes perfect sense to me. However, that doesn't seem to fully be the case. Under the second of the five FAQs on the Apple Clipper page, it says this (bolded by me in the answer):
What types of physical Clipper cards can I transfer to Apple Wallet?
You can add Adult, Youth, Senior, and RTC Clipper cards. Translink cards and Clipper cards with some special fare products can’t be added to Apple Wallet
3.
Be sure to keep your plastic Clipper card for Bay Wheels bikeshare use and your RTC card for fare inspection.
If the card works on Bay Wheels, doesn't that just mean it works?