Its not standard practice, but not unusual either... don't worry about it. A lot of schools run you through the dean or administrator before they send your stuff out. I had to talk to a dean AND an administrator. Schools who lose a lot of students to transfer engage in this process to maybe change your mind and/or learn why they are losing top students. My meetings were friendly and professional, other students reported that it was a little uncomfortable.
The easiest way to skate through the process is to tell them you've enjoyed your time with them and may choose to remain, but would just like to see what your options are in other programs. Obviously, don't bag on your current program, just in case you have to stay! I told the dean I wanted to pursue options closer to family and my professional contacts and that in the end I may find that the best decision would be to remain. Truth was I was out of there no matter what, even if it meant leaving school permanently... there was just no reason for them to know that!