The platforms are the same they're sharing the same engines, yeah you'd think they'd share the same transmissions too, instead of having so many different engine/transmission combinations they should sit down and do their homework and given they are electronic there's no excuse why they couldn't use the same transmission for different vehicles and tasks, by simply reprogramming it. They went soft on the transmission in the Bronco knowing full well people are gonna beat the crap out of them and overload them so they're back into the A4LD era of let's built the biggest pile of junk transmission to not handle anything so that people are stuck with enormous repair bills not covered under warranty.
People are buying cars based on a model name rather than their true usability in the real world. 99% of the buyers for these will be soccer mom, grocery getter, commuter people who have no intentions of driving them anywhere but the highway and parking lot at the mall. So trying to build a smaller size "Bronco" to be on the same capacity as the 80's and 90's Bronco isn't going to work. Its smaller than the full size Broncos were, so the wheelbase isn't going to do you any towing favors regardless how many electronic safety nannies you have, towing a big trailer behind a short, narrow wheelbased vehicle isn't going to work well. They could offer possibly a higher towing package in the base model, but unfortunately people don't buy base model cars they buy then all decked out which significantly decreases the payload capacity. The 2 door Bronco would most likely retain a much lower towing capacity overall than the 4 door model would, but I think they decided to just cut it down the middle and leave it at I think 3500lbs. Its not so much a suspension issue as it is a vehicle size issue...and the last thing they want to do is have another Firestone/Explorer rollover fiasco due to people overloading and improperly driving them. Even now you can't rent a UHAUL trailer and tow it behind an Explorer. With size in mind, the Bronco isn't a tow vehicle its a weekend play toy for those who are oblivious to the upcoming economical mess from people once again buying outside of their income.