It is common in jazz for other players to avoid the root note in its lower position, the idea is to give more freedom to comp, and to avoid repeating the low note in the bass. Remember that unlike classical music where the composer can decide where each instrument will support the music, jazz players have to do this on the fly, so they need to follow some common rules like this.

typically pianists do avoid doubling the bassist though. Playing jazz piano solo you do a whole different set of things than if you're playing together.