Both teams were eliminated few days ago on the semifinals despite winning their home games with 1-0 and now heading to play 2 games for the 3rd place which has no meaning because both are already qualified for Copa Sudamericana. Approaching this game in both camps don't hide there is zero enthusiasm about it (instead of this they could go in vacation) but will play it because "we are professionals and respect the rules". Of course, giving time to mainly less used players this season.
Normally I would pick Oriente Petrolero in such game (h2h stats say enough) but with the lack of any motivation it would be a dangerous bet. Instead of this going for the under at this high goal line.
The big reason is that San Jose are absolutely underish team, with best defense in Bolivia but on the other side having quite weak attack so from all 18 games including Copa Sudamericana just 2 ended with more than 2 goals (both with 3 so they didn't go over this line too).
It is true that Petrolero very often passed this limit but it is quite different case now, nothing to play for, exhausted physically and mentally after the busy schedule (this is 9th game in less than 1 month for both teams), first sign was Petrolero won just 1-0 with a goal from penalty against The Strongest who they usually beat more comfortably at home... So the more probable picture is a dull game that both teams just want to finish soon as possible.
Under 2.5 with smaller stake is also an option if you don't have this line, 2.30 available in some bookies as bet365 and vcbet, under 2.75 in SBOBET at 2.05