Music is highly subjective, so there's no reason for anyone to agree with anyone, professional critics or not, about what they like and what they don't. E.g. for me 'Wings at the Speed of Sound' is Wings' best album.
Moving to the topic of Neil's music pre- and post-Time on Earth, Neil definitely has changed his music. Clearly there are some people who will like that, and some who don't. But, artists rarely stay the same pumping out album after album for decades at consistent quality. If they don't vary their style, the music gets stale and the artist uninspired.