It's not like he came out of nowhere. It's Nigel Farage.
Now he's whinging about FPTP. Labour, the Lib Dems and the Greens have spent the past four years working on the most disciplined seat targeting campaign of all time, in order to squeeze the Tories 'til their pips squeaked. That's what it takes in FPTP.
Farage won't put that kind of work in.