It's most definitely on purpose and I've said should be the blueprint going forward with any other athletic director as well. The media does us no favors and are looking to pounce on any little thing and that won't change by playing nice with them. Give them as little as possible and only talk to them as necessary, which isn't often. The rest can be done through statements and RU media platforms.
Like I've said many times being in front of the media or talking to them often isn't a main responsibility of the athletic director. Hiring good coaches and raising money are all I care about, that's the meat and potatoes of the job not media BS. Again how many people can name more than a handful of athletic directors across the country. I actually follow that kind of stuff and I probably can't get beyond 15 or so.
How many knew the Miami AD, Blake James, before he fired Golden? It was done in a statement too btw, not him getting out front and answering questions. Spurrier just retired and how many know who the USCe AD is even after that bit of news? The football coaches and MBB coaches are the faces of the department not the athletic director, although that person is technically the boss. Pretty much the only time that a public media appearance is necessary is when a major coaching hire is made, otherwise just go about your work and keep taking care of the real business at hand.