It's not just that one failed thing, education jumps from one failed fad to another. Former neighbor of mine was a teaching inspector for schools and he'd occasionally talk about whatever the latest stupid fad was that he had to deal with. One example was open-plan classrooms, a complete disaster that failed in the 1970s. Who could have predicted that throwing ten teachers and ten lots of kids of different ages into the same space with no dividing walls would be a bad idea? Then about ten years ago a new school was built in an under-supplied suburb. Hey, let's make it open plan, that sounds like a great idea! So they spent tens of millions of dollars rendering into reinforced concrete and mirror-glass something that had already been shown not to work, but that was the current fad at the time so that's what got built. I don't know what they did with the school, it was nearly new and had swallowed a huge amount of money so they couldn't just demolish it, but it was unusable for teaching.

And that was just one single fad out of an endless succession of someone's-brain-fart fads that came along. He eventually took retirement after he spent more time dealing with education bureaucracy and mandatory virtue-signalling exercises than working with kids, which was his real passion. They lost a damn good teacher, and probably not the only one.

The issues are very complex, but elementary schooling isn't.

Of course, people with motivations not entirely driven by teaching children reading, writing, and arithmetic can make things very confusing.

You could evaluate the arguments on their merit.

But if you must know what they do other than analysis and writing, here's a recent example: https://www.educationprogress.org/p/were-suing-the-makers-of...

Disclaimer: I think Jack, Thomas and the others are doing useful work. I have contributed two articles to their Substack. I don't think the number of people involved in an organization should determine how seriously we take that organization.

I don't think having an opinion and summarizing it are indicators of bias.