Board Game Arena

Why on earth is this the sole game on the website with a tiebreaker that isn't turned on 99% of the time? Even Arena mode doesn't use it. What gives? Surely, having a clear winner in a competitive 2p mode would make more sense. It should be on by default, like with every other game with more sensible rules.

The tiebreaker is not in the rule of this game, and just names as a variation.
In the rulebook: " In case of a tie, all tied players win the game together."

Actually you can become a guru if you play a lot, and then you can vote for the game mode in the next season.
(However the setting is decided by all gurus and by voting, so it is not possible to make everyone satisfied.)