Another pointless post.
Yeah, he was a SeeD. You see him at the garden for the first time, that pretty much implies that he was trained at the garden or at least I think.GF training was a specialty of Balamb Garden, neither of the other gardens did so much with them.
I don't remember if Irvine had done his examination, but he was SeeD enough for galbadia garden to assign him a mission
I have assigned GFs onto Irvine, so I don't think that was the case :/ but I think he was lucky to remember the oprange events or maybe Ulti didn't make him forget properly.I think Ultimecia's repetition of 'SeeD' is basically her mocking them, that's all, not addressing them personally. Remember that technically, Irvine is not a SeeD either, as he has not done any training with the GFs, and has retained his memories of the orphanage.