It would be indeed be safer. Just the fact that it would be not be a pressurized water reactor, and would be operating near atmospheric pressure makes it a lot safer in my eyes.
And the reactor cannot melt down by inherent design.
Gas turbines are great. But they need fuel to run, and they do emit atmospheric pollutants.
Just because a single plant has not been built, or was built and shut down doesn’t mean it can’t be done or that it cannot be done at a profit.
If that were the case, we would have never built airliners because the first planes crashed and were unsafe.
Of course it could be done. I just gave the reasons why it is not being done.