If flame choke wasn't techable, I would have no doubt that Ganon was viable. But as is, his best option to deal with shielding is a complete guessing game against 2 key characters that he has no guaranteed followups on off a missed tech, Rosalina, and much more importantly, Sheik. The problem Ganon has here is that all of Sheiks option here, whether she techs or not or what getup she uses, are equally viable with no clear benefit to any of them. That means he has to cover 7 completely different options just to properly transition into his advantage state off of what was an incredibly difficult-to-get hit.
Which is stupid. Especially considering how most characters don't have fast/good enough tech options for this to be an issue, but Sheik does.
Two things would make Ganon viable.
1. Flame choke is techable, but F-tilt and D-tilt are guaranteed across the cast on a missed tech
2. Flame choke is not techable, but he has no guaranteed followups
I've gone into detail about this before, but the reason Ganon isn't viable is because his matchup against the most common character is borderline random whether he wins or not, and at a national level, he has to go through way too many Naruto wannabes to get to top 8 (if that's the definition we're using). Changing Flame Choke as such would make this matchup much better (and way less random) without overtuning his strengths against other characters.
Or the Japanese could keep under rating Ganon and get him buffed to top tier levels. I'd be completely fine with the top tier of a game actually being a fearsome character rather than an electric rat, a fox, a ball with a mask and a sword, a monkey, or a ninja that can't even try to kill you till 140%.
Side note, Ganon's F-smash has 6 active frames and is the same strength throughout.
Wat.