What type of Caring Company(sic), stand their flight deck and cabin crew down at the airport at 02:00, with no transport to get back home ( due to signal 10), no means of getting their checked bags AND then expect them back on duty 10-12 hours later
The same type of company that gets all those crew show up the next day without any of them calling unfit for duty.
You can't blame them for trying it on. You can only blame those who blindly follow it and accept it as "orders" instead of "requests". If that minimum callout was unsatisfactory, the crew should have spoken up.
I can tell you for sure that I would not consider myself off duty until getting back my bag and being on my way home in such circumstances. I look at that as my responsibility. As I get home, I would contact crew control and advise them of my report time.