Fender have a new short scale bass on the market the Rascal or something simliar - three lipstick pikups so LOTS of tonal variation & a push pull selector to mix the pickup selection to 7 options.
The dudes in the videos must be kinda smallish guys.
I have not tried the Rascal, but lately, with Fender, I do have serious reservations in terms of some of the lower end basses and find that the quality of the neck/truss rod/frets can be quite questionable. I have sent several of their low end specialty basses back because, while cool/fun and even some with a nice sound, there were serious construction problems that I wasn't convinced could be rectified even though fender would pay for a professional setup. (The quality of their top-of-the-line basses has been consistently good of late - they still need a serious setup, but nothing crazy.)
Have tried adjusting the setup to suit your playing...and then see how it is?
I wouldn't put a wrench to something out of the box with buzzing frets. Once I 'touch it I own it'.
...Sweetwater said they tested and even adjusted the setup on the second (replacement) bass. I find that hard to believe...
Not saying you didn't get two lemons in a row...but I certainly would have have checked the setups before returning them...that's what I'm saying. I mean, for me, it would be easier than returning it...but I don't have a problem with breaking out the wrench. It's certainly not something you want to do if you are not comfortable with it.
The way I see it, it's like driving a new car off the lot and the steering wheel shakes. I would rather return the vehicle to the dealer than pay to take the car somewhere to have the alignment checked or jack the car up myself and start unscrewing wheels to visually inspect the tires for bulges, etc. Your posts are the first I've ever heard someone suggest that a new guitar should be setup by the buyer. It would seem that would be something the seller would do prior to selling it. And if shipping guitars has this big an impact on the setup and it's such a common thing, then I don't think it's wise to be selling guitars mail order/online in the first place.
Look...I don't fault you for returning the guitars...I'm just saying that they might only have needed a minor setup adjustment to be right, and if it's something you don't want to do, then take it someone.
Since you brought up cars....a car may come from the dealer mechanically perfect, but you're still going to adjust the seats, the mirrors, etc....to fit your preferences and driving style.
You're not going to return the car because there's a blind spot due to the mirrors not being set up right.