While there are many benefits to nuclear power, this quote is at odds with your comment. Nuclear power suffers a low Carnot efficiency (around 30-40%), as it has an even lower operating temperature than the criticised old CSP design. While nuclear reactors can get arbitrarily hot, practical and safety considerations limit current designs to relatively low (and thus inefficient) temperatures.

Nuclear is also less practical for direct industrial use or distributed deployment because of safety concerns, with only a few exceptional cases like military marine propulsion.