Agreed John
Clearly you're potentially adding considerable weight in a four seater when you take on two rear seat passengers, so I can 100% see why air suspension would be advantagous in that situation.
I also agree than Morgan's attempt to replace lever arm dampers with telescopic dampers was very poorly executed, so much so that the suposed modification may well have delivered a suspension sytem that actually performed worse, not better, than the original arrangement.
Happy New year.
Dave.