Golly gee maybe a Statcast page isn't the be all end all for determining a baseball player's value to his team. Daulton Varsho had a .298 xWOBA in 2023, so I guess you can start preaching to everyone how bad he is with the bat as well. Biggio isn't and will never be a Statcast darling when it comes to quality of contact, but that's not necessarily how he has typically provided value to his team. It's easy to rant and rave about how bad a player is if you only focus on their weakness and ignore all of their strengths. Biggio's greatest asset has been elite plate discipline, and he continues to get on base at a decent clip despite the low batting averages.
The WAR per 550 plate appearances are for 2022 only, and nothing to do with his early career numbers so you can stop harping on about 2019 like it's somehow relevant. Biggio got off to a very rough start in 2022, however after returning from Buffalo he managed to produce at a higher than league average rate with the bat with a 109 WRC+. That's pretty good for a player with no talent like you are claiming. After returning in late May he produced at a 3.2 FWAR/550 rate. Here's a newsflash for you, that's really damn good for a utility player. Statcast ranked him as a well above average defender at second base and even or better at all of the other positions he manned as well so he has displayed a lot of defensive utility as well.