I don't even think that they are that similar considering Yuzuru now too. I don't even know how to explain it but Yuzuru doesn't seem to be like the innate "controlled skater" for me, like PChan, Mao for example or even Han Yan, he's actually the wilder type but he did the difficult thing which is to control in a certain way that he 'explodes' at the right moments, but still much more explosive than your almost-always-controlled skater. For example Han Yan can make his tired quirky Lori program over and over again but still seems controlled especially when he does classical things just like PChan doesn't quite loses himself that much in his jazzy programs which can throw some people off but please others. Yuzuru seems to me right now what Yuna was in her peak years (2009; 2010), not only the symbolic aspect, some people compare them for it but I'm talking the actual skating, that spark that you can't pinpoint what is it. However, Yuna still had some of that PChan control, it's just she was wilder at that point. While Yuna in her later years (or very very early years) where she kind of lost that spark but still mantained most of her quality, that you can make a case for being similar to Jun hwan but still meh, I can see it only If I overlook a lot. Still I find that quite subjetive, comparing the performance aspect, because skaters strike different people differently, something that jump technique wouldn't be.
I admit I'm terrible at picking the similarities, most 'grouping' of skaters doesn't work for me, but usually find the differences so for me there's no one with much similar jumps to Yuzuru's.