I think the fundamental difference is that the Gren is a pet project for a person with more money than any of us can fathom. JLR is a corporation answering to a Board and investors, just like any other. The latter has to tow the line in pursuit of profit above all else, while the former has the excitement of taking a chance at a swing and a miss.
I have to keep pushing back against the "lifestyle" moniker (slam?) heaved at the Pretender... RRNA and LRNA have been pushing lifestyle since landing on this side of the pond. Just open up any sales brochure to view Barbour, full Wellingtons, and champagne flutes at polo matches. The hairstyles of the models is just as bad as McGovern's. Even before that, the 2-door grey-market Range Rovers of the early 1980s went to Orange County, not Moab (I know not just because of period journalist reviews, but because I bought one for my brother).
To be clear: I have put down a deposit on a Grenadier.
And if I didn't want to keep my low number license plate, the Newfender/Pretender/Defender would be rockin' "LR5."