This isn't really shady or insulting like some of you are making it out to be
He was disappointed on the album because he feels like her could've made it sound better--correct or not that's just a reasonable and understandable opinion. If anything he's complimenting Gaga's potential and the fact that she's "an amazing artist." I see no reason for monsters to put him on their ****list or for anyone to see this as really shady