Envious? Definitely not.
During the time of her fame, be it long or short, she'll have to watch every little thing she does and says all the time because it'll be picked up on just the way this story has. I would hate to be her just because she can't open her mouth without being criticised, and that's one of the downsides of fame for any celeb, not just Adele.
Very nice to have the money and good luck to her - but it won't buy her happiness or necessarily peace of mind. If she gets upset by criticism it won't buy her a thicker skin either.