TIO540
I am agreeing with you 100%.
You can have "departed (location) (time in minutes)", be "estimating (first or next reporting point) at (time in minutes)", but I ain't never seen no "currently" (not to mention "this time").
Seneca208
As for "IFR departure/taxi", didn't you submit a flight plan?
Aren't they expecting a call from you?
When you were given a code and traffic (which should NOT need to be "requested") didn't that start a sarwatch of ten minutes for your departure?
The only iFR call that needs a notification/announcement is a position report.
Yo ho ho...