Everything up until this point was just them recalling the story. Let us hope they're reliable narrators, although him being unreliable and embellishing some stuff for the Rule of Cool would make some scenes make a lot more sense...

You know..... if it had turned out to be that Tidus was doing exactly that then Seymour would make so much sense and could've been revealed to have been a far more interesting (or at least credible) character after showing up again sans coat-rack-hair, blatant creeperness, completely nonsensical behaviour etc. I mean I wouldn't put it past Tidus to present Seymour as a ridiculous jackass but then Seymour goes and just ruins it when he shows up AGAIN and is even more pathetic than before. (Such a wonderful twist that would've been - thinking the antagonist has been Seymour this whole time only to find out it's really been Vayne!)

Yunalesca's undies are one of the most poleaxing outfits in FF for me. I mean WHY. WHY. She hasn't even got troll mage excuse like Kuja. And her husband is fully dressed. WHY. Put on some clothes, lady! (I'm not against women showing off their bodies or wearing skimpy clothing, I just don't really care for it when it's impractical and makes no sense regarding their characters XD)

The Chibi Seymour bit really needed a lot more development as it is so ridiculously rushed. "I'M SCARED, MAMA, I DON'T WANNA BE A SUMMONER!" "TOO BAD, EVERYONE HATES YOU SO YOU HAVE TO BE A SUMMONER AND BEAT SIN BECAUSE OTHERWISE YOU WILL FOREVER SUCK FOR HAVING ANTLERS" The whole backstory of Jyscaal being a TERRIBLE husband/father and Seymour's mother being driven to such desperation that the only thing she could do to improve her son's life was force him on a pilgrimage could've been great but all we get is that one flashback and a few very hidden mentions of it. You'd think antler angst would be something that could actually be explored but... nope.