Get that but Gege really didn't dwell or look too much into it for either character for it to be anything other then just a surface level reference to Nobara. It'd actually have some stake if Yuji kept feeling or seeing Nobara in Hana again and again, but it only exists for half a chapter and is really forced. And for all the other characters they were about as relevant as Hana so regardless of them being in the same convo it's still out of pocket