So this is just an article pointing out something in the TOS.
National security requests are common for any big company[0-2] since they'd rather play ball today, under their own terms, than resist and trigger new legislation that forces them to hand over information in any warrantless circumstance.
0: https://www.apple.com/legal/transparency/us.html
1: https://transparencyreport.google.com/user-data/us-national-...
2: https://transparency.fb.com/data/government-data-requests/