Nice exaggeration there... But really, most of the Pokemon that show up in the show never have their abilities revealed because it's never that important. Chimchar is one exception where the ability became an important part of its history and character development, so Blaze ended up with a large amount of focus.
Yeah that's true. I know I'm forgetting some, but I think these are about most of the abilities revealed to have/used:
Static- Ash's Pikachu, Iris's Emolga
Overgrow- Ash's Grovyle, Ash's Torterra?
Blaze- Ash's Chimchar, May's Blaziken
Sturdy- Dento's Dwebble/Crustle, Ash's Boldore
Zen Mode- Darmanitan
Super Luck- Shooti's Tranquill/Paul's Honchkrow
Guts- Paul's Ursaring
Flame Body- Paul's Magmortar
Gluttony- Chili's Pansear
That's all I can remember, but like my point is we've never seen many abilities reveal on the main cast. There may be ways to tell from events, but they've still never been officially revealed. :/