In my experience, “flat”, “satin” or “matte” finishes tend to show up scratches/marks/dings a little easier, depending on the colour of said finish. However, as the bass you’re referring to has a natural wood grain, the random busy nature of the grain will mask a lot. Shiny patches are pretty much an inevitability though depending on your playing position. I wouldn’t worry about it really. All my basses have satin finishes - I much prefer them.