They say the probability of an upset skyrockets if you go the full 5 games

According to AI analysis, a team that advances after a full 5-game series has a 23.1% championship probability, which is 2.5 times higher than a team that finishes the playoffs early with a 3-0 or 3-1 record (9.1% championship probability). This is because the resilient mentality forged through high-stakes battles and peak hitting sensations allow them to overwhelm the #1 seed, whose competitive edge may have dulled during the break.
They say if you finish the playoffs early and advance to the Korean Series, it's hard to win even once—less than 1 out of 10 times. ㄷㄷ
However, a team that advances after a full 5-game playoff series sees their championship probability rise to about 2.3 out of 10 times.
This is a more surprising result than expected. ㄷㄷㄷ
Common sense suggests that going the full 5 games would leave a team exhausted and prone to a one-sided loss, but
it seems the shortcut is to finish the series quickly before the #1 seed regains their rhythm and composure.
The series must end by Game 5 or Game 6 at the latest;
if it goes to Game 7, it's a 100% guaranteed loss.