Hi fdg135,
I have heard a similar argument, have you got reference? Not trying to be a smartass or anything but I need to see a reg which states that for my own peace of mind... considering your reasoning is legitiment, and if an area forecast is suitable to determine the wx at an aerodrome which never has a taf... then why can't it be used for an aerodrome that " usually has a taf produced but is not available "
It makes zero sense to me if this is the case.