Since no one else has said it, this isn’t a design flaw of the truck. The operator didn’t let air out of their tires. Before driving on sand you really want to let your tire PSI down to like 15 to be safe. I used to pull hummers out of the beach with my old four cylinder Nissan pickup because their drivers were often overconfident they didn’t need to deflate their tires (or just completely unaware). I don’t like Tesla but this is an operator error, not a fatal flaw of the truck.
Calm? It scares the ever-living shit out of me that I’m surrounded by these people every day. They drive next to me. They have power over me. It’s frightening.
Back in the late-80s or early-90s, a guy in my coastal town bought a new Nissan Pathfinder, took a bunch of friends for a nighttime joyride at the beach. I do believe there was beer involved.
When they hit water lapping in the sand and made a sharp turn, the tires made a wake that looked really, really cool! Do that again!
Suddenly, the car stopped moving forward. They had drifted too deep. Of course none of these rocket scientists had any idea if the tide was coming or going... it was coming.
They got out - through the windows I guess - waded onshore and prayed for the best. But like I said, the tide was coming. They saw the Pathfinder that still had that new agency car smell, getting completely submerged.
Next day a tow truck pulled it onshore, but as you probably guessed, it was a total loss.