After nearly 450 posts the question here should be "how can we prevent a disaster?"
LTD tried, and could not stop it happening.
The fact that no disaster happened, and he was mistaken about the need for IBE6166 to de-ice (due to the fact nothing went wrong)
What pisses me off about this whole affair was after a PROFESSIONAL aviator brought a potential problem to the attention to another professional flight crew and a professional ATC system nothing was done to check or verify anything before the aircraft departed.
Anything anyone files after the event does not matter. It is too late.
From LTD's first post and the RT communications from him and ATC's relay (through delivery and ground) a professional thought there was a safety issue.
However, there was no attempt by anyone to stop the departure while a check on the ice condition of IBE6166 was made.
Next time............