One of Game of Thrones' biggest mistakes starts well before season 8, and HBO has another underrated fantasy show that avoids this shortcoming. Whenever discussions of the fantasy series' flaws arise, viewers often cite what went wrong with Game of Thrones season 8. However, the HBO series makes one change to George R.R. Martin's books much earlier — and it's similarly disappointing. This is the show's use of the direwolves, whose role in the adaptation is undercut, despite the original emphasis on the creatures.