Hi, thank you so much for reaching out! This is correct! Snooker tables are different in real life as well. Pockets are smaller and the table is longer. Balls are also smaller as well.
What we meant by "these can be used interchangeably" is common assets from the game, such as ques (sticks), UI, etc... The idea is to allow devs to make a complete game where the player can choose if they want to play 8-ball or snooker within a same game, not to use snooker tables for 8-ball.
The idea is to make 9-ball in the future as well and give devs a way to make a game about every possible pool/billiard game.