From what I see this case is that Ehab, for whatever reason, trying to find a reason to get rid of these guys. Seems to me this guy has been doing this kit job for a long time, so why now are they jumping on it, for the reason I mention above.
Most employers would have said to him, look I know you have done this for a long time, but we want you to stop as we feel this could be effecting your job with us.
But as I said, they were just looking to find a reason to sack them, which frankly is a underhand and despicable way to act.