Yes, new technology enables other new technology. The e-brake potential of drive pods was recognized before they were put to practice, and the jury is still out on whether or not it is the way of the future. But it is something that simply wasn't possible before at all unless you wanted to risk a snapped drive shaft, you can't just throw that much rotating mass into reverse without consequences and the driveshafts of a liner are most impressive, I've stood on a lathe that could cut them, and that thing required it's own building and power hookup just to spin the shaft up in a reasonable amount of time for machining.

> The vessel suffering from a blackout caused by a transformer being tripped by a single loose wire.

Transformers don't 'trip'. Circuit breakers do.

Yes, it was a loose wire. But that vessel had regular diesel propulsion so that is not going to make any difference, loose wires can - and do - happen, usually with less far reaching consequences.

The point of the pods is that there are many of them, and they are somewhat redundant reducing the chance of such complete outages. It may well have prevented that particular accident but it may have caused another. This tech is just too new to draw any conclusions.

As far as I understand it every pod has its own dedicated power infrastructure section (batteries, drivers), with the ability to maintain symmetrical drive even in light of multiple failures. So these are right now not for normal propulsion on ocean going vessels (though in a diesel-electric setting they could already be used like that and there are a couple of vessels that use them but I'm not sure if that is for main propulsion as well), but these 'captive torpedos' definitely have a lot of potential.