I wouldn't call it "adoption", more like "acceptance".
people weren't sitting in the governments office one afternoon thinking what can we do, lets "accept" bitcoin out of the blue.
there were adoption, people wanting bitcoin as a legal way of payment, government processed the request for some time and accepted it.
now businesses are adding bitcoin payment to their services little by little.
People making these "Bitcoin is dead" posts are annoyed about the temporary situation of delayed transactions, and are also largely people who use the Blockchain wallet with fees of 120 satoshi/byte all the time.
people who are annoyed by the delayed transaction are going to come out and say fuck you bitcoin i am annoyed with you.
they are not going to come here and say fuck you bitcoin, ...coin is going to replace you because it is .... better than you. take a look at tech support board to see the topics of type 1 and take a look at this board and speculation board to see topics type 2