You're going to let someone else's posts cause my topic to be locked? Shocking.
And yes, the devs may be able to do whatever they please. It still doesn't reflect well on their business, however, when you have people underage as the front-facing element of their business. People go to the official server because it's hosted by the developers, on the assumption that it's held to a higher bar. Finding out that you have to answer to an honest-to-god child undermines this.
If you can't figure out why, I have no words for you.