Nxt has dozens of arguments against it, has been launched in the worst way possible, and if the development team now disappears you would have something without development that is worth nothing. Closed source, unfair lauch, very uncomfortable java software. questionable security (until they release the entire source code), No, the right thing is NOT buy nxt, no matter how much worth, and a serious exchage should not admit it.
Bitcoin was 'uncomfortable' to use in its early days too, no GUI just command line. There's nothing wrong with Java either, just armchair programmers talk it down because of its stigma with exploits on the web. If Java isn't your thing you can always disable it your browser, as I do. NXT only uses it for the daemon itself.