It's interesting to note that I haven't come across many, if not any, who didn't think that Felicity was right in her attitude at the end of "Taken". I've seen a lot of reactions online where people have commented on how badly Felicity's character came off in her final scene (let alone for most of the episode) with Oliver so I'm hoping this is a trend that catches on to the Producers and the Cast Members.
If i'm not mistaken, by Season 8 of "Smallville" even Kristin Kreuk was aware of how much hate her character received from portions of the fandom. I also heard that it was actually one of the reasons why she wanted to leave the show.
I'm not wishing ill upon EBR of course but I hope that the producers catch wind of how badly they just screwed up EBR's character where they may feel forced to change how Felicity is being written.