I can think of even more problems. Off the top of my head: the manufacture of SMR modules would be, by design, centralized into a few large, well-funded entitie

I can think of even more problems. Off the top of my head: the manufacture of SMR modules would be, by design, centralized into a few large, well-funded entities needing lots of government permits. The probability of corruption, mismanagement, or political bikeshedding would be pretty high. In the worst case, SMRs would just take the various problems large reactor projects have and gather them into one manufacturing choke-point.