Just because it works doesn't mean it's good for kids.
I believe it's possible to drag a class of students to good scores while leaving them blind to the joys of learning. I could most likely spend the majority of my day killing and drilling my students to good fluency reading scores with pure phonics, isolated sight words, decodable reading passages, meaningless worksheets or activities, and then topping it off with pointless homework without them really ever learning the joys of time spent listening and interacting with amazing read-alouds or reading independently or in partnerships or in book clubs with real live books in their hands. These students might get good fluency scores, but they won't be in love with books and most likely quite the opposite will be true.
As Burgess says, building a love of learning in our students takes priority over anything else, and our instruction must reflect that. What indeed are we nurturing?
Great test scores or students?