I agree with you that it is worded very poorly. It's almost like the person that wrote the service bulletin didn't understand the operation either.

I'm starting to think that the wording..
When in defrost mode AND the temperature is above...

should actually be...
When in defrost mode OR the temperature is above...

I have yet to get the flan to blow without the compressor coming on.

I'd love to see what the official manual says...