While i do agree that sweep double-thumbing techniques tend to be overkill as well as tapping and such, if you are in a band already and arent a bassist-for-hire or session artist looking to make money doing such things, if you just play 1/4th and 1/8th notes then you are really doing a disservice to only yourself and the instrument.
Now before I get flamed on about why I feel this way, let me state that everyone has their own style and what works for them works for them, but I would be furious if i paid all that money to be told to challenge myself less as a bassist in a real playing environment....REALLY furious lol. Just my opinion, I think we should use grace in our playing and understand the time to pluck and the time to slap, but not forget to push the limits so we don't get too comfy.