The strategy exists it just doesn't sway the result of the game directly; i.e. you still have a chance to win against a far better player, it's just lower. While in Go you will have almost no chance.
Go is comparable to Chess.
Riichi is absolutely comparable to Poker.
Both involve random hands, both are fun to bet on, but both have televised tournaments, professional players, and tons of strategy.
(I don't actually know much about Poker)
When I play mahjong in real life with my friends who only have that "basic level of strategy", I do much better than them on average.
When I play online with my senpais who are Saint rank in mahjong soul, I do much worse than them on average.
Yugioh has strategy too, the anime is just more fun if there is superhuman luck.