By this article's data and other data linked, reading scores have been FALLING since 2015 (2013 for other scores) - and through 2024. This cannot be because of NOT adopting some reform. Something else has to be in play. You cannot damage some production result merely by NOT introducing some change. That's insane. "According to research" has some explaining to do.
I'm not saying that changing the teaching method would or wouldn't help. I'm saying that something ELSE had to actively happen that caused the measured drop.