I was responding to the comment about it not taking off in the states and general pessimism for the series mainly. It did over $200 million here and $800 million worldwide. These were never going to do Potter numbers and WB knew that. Sure they would have liked $300M/$1B type numbers, but I don't think they freaked out over the numbers it did. It's nothing like TFA. If they release a Potter movie with Daniel, Emma, and Rupert in it, then we can talk about a TFA comparison.
Also, the Potter movies, while big, never were box office juggernauts. The first and last were bigger, but still, DH2 is the only one in the top 50 domestic. SS is the only one in the adjusted for inflation top 100. Most weren't even the biggest the year it came out. They always were bigger internationally than in the states and FB will play out the same way. For an original story with all original characters it probably did better than it should have. The next movie has Dumbledore, so that should draw more of the Potter crowd in. So like I said. It's fine.