And the batteries don't last forever, but they're also not expensive batteries. You can refresh a Prius for a grand or less all-in.
It's also fairly irrelevant to discuss the 4cyl surviving in a 2.5 ton vehicle, because the engine itself doesn't often take that load by itself. The engine likes to keep lower RPMs, where its peak torque is. It's not like these things are constantly in the higher ranges straining to move the truck.
The technical data and specs of the T24A are impressive. I know turbos are scary to the Toyota crowd, but they clearly learned a lot with their partnership with BMW. The T24A should be expected to be as reliable as the B48 (which has zero outstanding common issues btw) but with added redundancy and reduced complexity. It's a brilliant design. The turbo is cooled frankly more than it needs to be, and the engine itself is appropriately reinforced.