Trust me i have been on the forums, i fully understand problems they have had. I also own one. Most of the issues had been fixed with the later LR3's and LR4.
I have to disagree about why they switched. Land rover switched from body on frame (LR3, LR4) to full uni-body with a ton of aluminum, utilizing a design more in line with the new range rovers which are also uni-body, less weight, more fuel efficiency ect.. Yes it is a more road biased system by nature (the lr3 and lr4 are HEAVY) but that was done as a shift in brand image of the discovery because they knew the new defender would fill that void. I also have to say My LR3 has been extremely capable off road, it has also been one of the most reliable vehicles i have ever owned.. go figure. I am excited to see what Tesla can do with the Cybertruck!
Do any of Tesla's air suspension systems have a history of being unreliable?