I agree that most of your views were very balanced but the final scores very much reflect your own personal requirements.
For me, the vehicle is an every day driver so the superior driving experience of the mp won heads down when I was investigating both models. Also the quality ‘feel’ of the mp helps to confirm it was worth the money I spent.
It would be interesting to hear your views once you have lived in the mp for a few nights. The comfort of the upper bed in the mp, without having to run out and buy any additional toppers, is impressive. At my age, I found the feel of the Cali bed too much like camping as a youngster!
However, if you have four people using the van, I agree that the electric rear seats in the mp might be a bit of a faff, but for two, the lower seats are more comfy than those in the Cali.
In conclusion, I think it is impossible to be unbiased about which of the two vehicles is ‘better’ as both have their advantages, according to individuals requirements and tastes - plumbers van or taxi, the choice is yours!