I only played 2B at the high school level but I do personally believe it is the easiest infield position to learn. Burger's range is going to be limited no matter what but if he can be put in the right spot for each batter he can be an average 2B and if his bat can be good I would be fine with that.
Either way him being able to play 3B, 2B, and maybe 1B gives him a shot to make the roster as a UTIL guy or more likely to be traded. Nothing wrong with him learning a different position