LTD, I am totally in agreement with your concerns at the attitude of the IB A340 crew.
This attitude is not good for the Industry, Especially the safety of the Airframe and all aboard.
It sounds like the IB crew didn't carealess, As to any concerns coming from yourself and any other like minded proffessionals.
The Tower ATC didn't sound too bothered either??
If you turned the tables, And it was you pushing back, Would they have said anything about you not being de iced??
Sounds like IB needs more CRM & decision making training??