He really shouldn't have any issues with answering your questions.
If he messed up an attempt, it still wouldn't take 2" to clean it up unless he had trouble with the threads, and even then it doesn't take two inches. Another reason could be that he wanted to get clear of a hardened throat.
When a well used gun is dissected and checked in a lab, you will find the condition of the metal where the throat is worn to be somewhat carbonized and harder than normal.
If he wanted to get into healthy metal, he may have just taken a swag at moving forward to avoid the reamer hitting that worn zone and making a mess. Again, this is just a potential reason that comes up, we have no way of knowing why or what he did to yours. Sometimes you can't move forward two inches because of the bbl profile where it might not have enough diameter.
Maybe count to 10 and cool off, then give them a ring and see what they say.
YMMV