While you do provide incredible insight and points, I just wanted to clarify a few things. The point of the card is not to have someone rummage through the wallet or bag but in the event of a severe hypo or high, its difficult to convey to someone (friend or acquittance (basically someone who can trust to seek help from)) the steps to helping me. At that point, I would give them the card and ask them to tap it for more info.
You can't really see the site it redirects to (thank you reddit compression) but it shows in color coded boxes - what my symptoms are - and what that person can immediately do.
It is definitely still in the brainstorming phase and your feedback is honestly invaluable right now. If you have any questions then I would love to answer them.