As a former teacher, there have always been pressure to push “new” approaches towards teachers and students. These approaches usually failed completely as predicted. The cycle repeats every 10-20 years.
You can't get a promotion in the bureaucracy if you just "do things well". You must "innovate" and start an "initiative". Administrators also get a pay bump for completing degrees like a master's and a PhD, right? so you have to do something that pleases the advisory committee to get your pay bump. Individual incentives are really misaligned with helping kids learn math best.