The original source of the interview is ET Online (Entertainment Tonight), which is a credible site. The interview is dated February 19, 2013 and was done at a Trek convention in Burbank.
Burton says, "... his timeline negates the existence of Next Gen. I think that's silly." If we give him the benefit of the doubt that he saw the movie, paid attention, and knows it's a new timeline, he could mean he's sad that TNG characters may never even be born in the new universe, let alone come together on Enterprise-D.
I mean he could
mean that, for what it's all worth. Which is about a nickle.