I think one of the reasons we didn't see as much TIE/fo as we could/should have is that you need time and practice to grapple with their strengths- and they were too new to allow that time and practice. Were Worlds held today, I'd bet we would see a couple in the Top 16.
Relatedly: Juke and Coms relay came out after Words, and they are an amazing combo on the TIE/FO.