Not gonna lie, I was pretty concerned you were gonna pull a [@Tatsua Aiisen] and app loli EMIYA. I'm glad you didn't because I would have said no. 

If we're being technical then you probably shouldn't be able to summon him without some bullshittery like Rin's pendant or p l o t, but since if I applied that logic to you I'd have to apply it to everyone and make things a lot messier as a consequence, he managed to avoid the banlist.

Either way, yeah, it's EMIYA so it's fine.