Partially, yes. The reactors currently under construction are third generation, as opposed to tested, proved and wildly successful second generation plants (plus tweaks and updates). There are of course many good (and even more really bad) reasons to prefer a new and unproven design over a slightly older proven one, and few of them unique to nuclear projects -- but massive unwarranted fear (including conflation with nuclear weapons) has been the defining narrative of nuclear between 30-40 years ago when we were perfectly capable of building nuclear projects and today.