You are surprised a state larger than half of entire lower 48 that uses airplanes to get around has a FSDO? In the scheme of things you should and should not be surprised by, I'd say this would be a "not surprising".
There is the Regional Office, Anchorage FSDO, Fairbanks FSDO, Juneau FSDO, a Aircraft Cert. Office and a NSTB Office. We have more Fed's than you can shake a stick at.