Who said they were phased out by TIE interceptors?
ROTJ and common sense say so.
Why does the B-52H, last built in the 1960s, still make up nearly half of the US heavy bomber force? Why does USAF still fly versions of the F-16, initially developed in the 1970s, despite the development of more advanced airframes such as the F-15, F/A-18, and F-22? Can’t seem to figure out what common sense you speak of.