LTD I dont wish to get into an argument or appear to be attacking you.
However it is accepted practice to apply a preventative anti ice if conditions forecasted dictate it necessary. Not having access to the IB 340 tech log or holdover times to hand or evidence to suggest this may have been done before the aircraft was possibly towed onto stand it is just a theory based on what you have previously stated here.
But the issue continually put to you is that this is the wrong place for bar room rants that identify others as unprofessional cowboys. If you feel strongly about this use the correct channels. As a veteran of 20yrs in this industry you should know this.
And please do make the same call to ATC in the future it is to be commended I would do the same it is what sets us apart from many industries, ignoring commercial rivalries for the sake of safety.