Fender Shaped Object, but Flatulent Sheep Owner is funnier.
Most of the people who complain about the ergonomics of the 4000 series tend to come to them after exclusively and extensively playing Farting Slug Ovulations, and are therefore used to playing bass that way, with little willingness to adjust their playing style to match the instrument.
It's kind of like expecting an SUV to drive in exactly the same way as a Hot Hatch. The principles are the same, but each have their own idiosyncrasies that the driver has to adapt to, in order to get the best out of each, rather than expecting the SUV to drive exactly like the Hot Hatch (and vice versa).
I'm quite sure that each and everyone of us has spent a considerable amount of time playing Flying Saucy Onions, but have all come to the 4000 series basses with an open mind and a willingness to adjust & adapt in order to get the best out of them.
But there again, some people might just simply hate the ergonomics of them. 🤷♂️