And so because a "celebrity" uses Land Rovers, they're not credible as overland vehicles? I don't understand your reasoning.
Somewhat correct.
My "overland" definition does not does not include multiple support vehicles and tens or even hundreds of thousands of dollars worth of support.
My "overland" is solo vehicle, into areas perhaps a hundred miles (max) from any form of support. I had best be prepared for any electronic or mechanical failure and also be prepared to walk to support. I generally prepare for at least a 40 mile walk.
I think this difference is night and day. With reports of failures on the "new Defender". I think that I will continue to place my trust in an old dependable D1. I have winched my first D1 almost a mile, managed to get it running, pulled part out of the diff, replaced axles, cvs, some wires and tires. Somehow I manage to get out without walking (knock on wood). I know my vehicle's condition and problems and it is not susceptible to random failure and a 2 month wait on parts. FFS I could probably have an engine in a few days.
Is the D90 an overland vehicle in the sense that it can do hundreds of miles of rather trivial dirt roads? Sure. Go for it, it dies? Just get a tow. Can it do anything that happens to be in its way? Definitely not as much as other and perhaps older vehicles.
Is the D90 a vehicle that is worthy of carrying you over skree, talus, boulders, miles of washboard into the most remote areas with the ability to be fixed in the field? IMO not so much.
Defenders have fragile body, fragile unibody, fragile electronics. Anyone that really gets out there either needs the support or spares. IMO, the "expedition" funded by LR and other projects by "celebrities" allows for the extra expense of these necessities for the safety of humans. From my perspective, these people are thusly not really prepared for "overland" expeditions. They are on a tour.
I have been on these tours. With skilled "overland" trainers, other Land Rover enthusiasts, etc. It is night and day between a big tour, LR Rally, etc. VS. being out solo. Being out solo, on your own and responsible for only you is what "overland" means. I don't feel like the "new Defender" has proven itself worthy of this. I don't believe the people I have commented on are prepared for the worst and certainly not solo. I don't believe my version of "overland" is the same as everyone else's. Afterall many overland in Sprinters and Subaru, enough said, yeah?
YMMV. IMO.