It also doesn't seem like it answers the question of where this teaching happens or how the students get there. Our current classrooms definitely aren't set up for this.
Again though, I suggested adding it as a publicly funded option, not making it mandatory. If parents preferred a traditional school, they could do that instead. My point was that we could support alternative models like this with existing public funding, and it would benefit the children who perform better in a small classroom environment.
This basic structure is something that homeschoolers have been doing for decades as well, with $0 government assistance. In that case, you typically have a co-op arrangement where the parents share teaching duties for a small group of children. It's difficult but possible, and government funding would go a long way towards making those sorts of models accessible to more families. Right now it virtually requires a parent working part-time, which is something a lot of households struggle to afford.