Yes, I saw the Clarkson episode, which proves nothing. I've also seen a Suzuki Rhino get through mud a Defender 110 got stuck in, purely due to its lighter weight, but that doesn't mean I'd take one through the Sahara. And I've seen a 250hp John Deere stuck up to its axles in a ploughed field, which also proves nothing.
Benchmark for off-road capability of new Range Rover (L30) was the outgoing Range Rover (P38a) which had live-axles. Why then was David Sneath, chief project engineer on both L30 and P38a, able to create superior off-road performance in the new Range Rover with independent suspension? Because the air suspension of L30 differs from P38 in having cross-link valves between the gas springs, which open automatically as soon as wheel travel monitors sense the car is in an off-road situation. This allows air pressure to be diverted into the suspension on the side where a wheel has left the ground and is what endows the new Rangie with superior wheel articulation to the beam axle set-up of P38. Incidentally, rear wheel travel on L30 is 4" greater than P38, testiment to the fact that live-axles are not the be-all and end-all off-road!
New Range Rover also incorporates unique driveshafts which articulate an astonishing 55 degrees and which allow both front and rear diffs to be raised with the bodywork when the air suspension is raised to its off-road setting. This gives greater ground clearance than both P38 and Discovery where diff clearance can create problems.
Believe me, New Discovery minus beam axles WILL be better than current model both on and off-road as is new Range Rover. And if you're still not convinced, have a word with Roger Crathorne in Solihull, MD at Land Rover Experience. He'll put you right