The Things We Never Say (Elizabeth Strout) – I don’t understand the rating on this book

This book is 4.4 on Amazon (4.5k ratings) and 4.3 on Goodreads (10k ratings). I'm looking to see if anyone here has read it and has thoughts on the writing. The author won a Pulitzer Prize for another book, and this book is clearly in the bottom three books out of about 1000 books that [...]