Quick upgrade for easy to plug and unplug end effectors/toolheads. Activity/status LED are also moved from the back of the printer to the top and some more voltage regulation to provide additional voltage rails.
While a nice connector adds significant cost it is also a big value add for certain 3D-printer. I think more manefacturer should consider tiny details like this when designing their product.
Strain relief isn’t installed on this tool for reasons …
As long as its not a propietary connector I don’t see any problem with it. Bonus points if there are spare connectors for fans, LED lightning or even just spare GPIO pins available to allow for user modification