I think if someone is a lighter weight rider they can pull off lower pressures on a road tubeless setup to avoid all the higher pressure road tubeless "pitfalls". Most of the "it didn't seal" or "I lost too much pressure anyway when it sealed" is when road tubeless needs to seal at a higher pressure.
I think if they can resolve a few of those things for "joe public" who can't run super low pressures due to weight, and resolve the whole "get a spare tube in" debacle.............it would be game over for "garden hose" style Gators.
I used them to ride mixed surfaces in France on my cyclocross bike. I wanted flexibility to explore. They worked. But if they got road tubeless right in a 32mm............I'd go with that instead. And that opens up possibilities of faster tires on equal flat protection at that point.