dasleben
That's just, like, your opinion, man
Ultimately the choice to land was the pilots and only the pilots. That is a basic fact. The ramifications of the landings is another matter. Here I do play a role, which is to act on behalf of and in the best interest of the land owner. In this case that is to document and report the incident to the appropriate authority.
It is now up to the appropriate authority to decide if anything improper took place. If the answer is yes, then again it falls on the pilots who made the choice.
If that's the way you feel you can wash your hands of this, by all means. Yes, the pilots are ultimately responsible for landing where they shouldn't have landed. However, did your colleagues ask you "Hey, how do I report these guys to the nearest FSDO?" Did they even know where to start before you were brought in to "help"?
Did you at all try to dissuade your company from calling the FAA?