Mistakes are easy to make. Claiming Yeshiva of Flatbush is ultra-orthodox is a mistake. A mentsch would admit the mistake and move on, not change the subject and obfuscate.
Again, I'm not fully conversant with what all has happened here, but it is quite possible that there is more than one "Yeshiva of Flatbush." Mainstream media is as bad as anyone at mislabling, and they could have misunderstood a yeshiva in Flatbush as "Yeshiva of Flatbush," thus misidentifying Chasidim as "Modern Orthodox."
Wideawake remarked that because Chasidism is growing (and it is along non-Chasidic Charedim, thank G-d!) that traditional institutional governance is coming under strain and this sometimes leads to misunderstandings with the greater community. This happens in any and all communities experiencing such growth and does most certainly not constitute anti-Semitism.