A group proposes to build simple, affordable housing and funds it. Then another group comes along and says that people with affordable housing deserve energy-efficient, low-cost-to-run homes, so the plans get upgraded with better windows and walls, and the cost doubles. Then another group comes along and says that affordable housing should be green with solar panels and battery power. And another group says that all affordable housing should be fully accessible, so the size of all doorways is upgraded. And another group says that affordable housing should be ecologically beneficial, so now the housing requires a green roof and rainwater collection. And so on, until the cost is 5x the original cost and the project never gets built, and a bunch of time is wasted.
This is the risk. Each group along the way had noble motives, but by trying to solve every problem at once, nothing gets done and no one gets helped. By contrast, politics that are instead centered on tearing down systems and rules don't have this, because any random action is a step towards the goal.
I feel like this is happening here to a degree. Instead of producing a functional alternative, this well-intentioned person is picking apart all the problems with the current approach. They may be 100% "correct" in their assessments, but politically, they are letting the air out of their own balloon.