Silly Seifer !

[maybee]

He can wield a gunblade which is difficult to master

That is simply not true.

Once you you get the timing for the R1 trigger it is mastered very easily.

I meant in universe wise lol.

Something definitely happened to him in that TV studio, though. I'm not sure exactly how far that went - was he permanently affected or under some kind of spell? I'm genuinely unsure.

Yeah same. Always assumed that he was under Edea's/ Ulti's mind control. If you speak to some NPC's after Edea's parade they speak about feeling weird, like they were under some spell.

Always assumed that Ulti took advantage of Seifer's weaknesses.