CAN is run in parallel, so you could easily just twist two wires together and insert them into the crimp or something like that. An inconvenience, but it still works as it should. the greens and the yellows are commoned on every device out there.
EDIT: Star topology is not recommended, discussed
here, and
here
Yes it may work, but you are more likely to run into signal quality issues, due to the loss of twisting and long runs, besides, I'm not sure I see the real benefit, you need a pair of wires for every device on the bot going back to a central location, rather than short links from device to device.
Basically, dont do star, and you can make it work, but id recommend the weidmueller connectors if they do a revision if the board, even if it adds to the cost.
That red cable looks like a Y cable to me, I wonder if thats what its for, however, I see an issue of the wrong colors for CAN wiring(required in the rules, usual disclaimer about 2017 being different...), and it doesn't look twisted