Be thankful that Joan Rivers is no longer with us, AMPAS and PwC, because she'd have torn you both to shreds already.
Although PwC has pretty much hurled themselves on the grenade for the Great Oscars Blunder™, it seems they're still trying to be contrite about the whole thing. It's been reported by various outlets that Brian Cullinan, the PwC Partner in charge of handing out the envelopes on the night for Best Picture, became distracted - tweeting a picture of Emma Stone and Brie Larson hugging backstage (he's deleted the tweet, incidentally) - and handed Warren Beatty the back-up envelope for Best Actress rather than Best Picture.
PwC issued a second apology late last night, explicitly naming Cullinan and their version of events as to what happened - leaving out the part about Cullinan tweeting a picture of Stone and Larson.
— PwC LLP (@PwC_LLP) February 28, 2017
Meanwhile, AMPAS - the Academy of Motion Picture, Arts and Sciences - issued a statement on the matter to US outlets, which reads as follows:
"We deeply regret the mistakes that were made during the presentation of the Best Picture category during last night’s Oscar ceremony. We apologize to the entire cast and crew of La La Land and Moonlight whose experience was profoundly altered by this error. We salute the tremendous grace they displayed under the circumstances. To all involvedâ€Š—â€Šincluding our presenters Warren Beatty and Faye Dunaway, the filmmakers, and our fans watching worldwideâ€Š—â€Šwe apologize."
"For the last 83 years, the Academy has entrusted PwC to handle the critical tabulation process, including the accurate delivery of results. PwC has taken full responsibility for the breaches of established protocols that took place during the ceremony. We have spent last night and today investigating the circumstances, and will determine what actions are appropriate going forward. We are unwaveringly committed to upholding the integrity of the Oscars and the Academy of Motion Picture Arts and Sciences."
As it stands, PwC still have the contract for the Oscars and considering they've taken full responsibility, that'll likely be the end of the matter as far as AMPAS and PwC are concerned.