The problem with that statement by Terry is that it has partially been voided by new relevations from within Ford. Basically there is an issue with material being left in the oil passages during the casting process and eventually migrating through the motor and that is more than likely the main cause of the spun bearings. There is still valid speculation that other causes are oiling issues and rod issues.
Now on to the Demon issue. Of course he's rude as hell, he wouldn't have it any other way, so I wouldn't expect anything else from him
But in his defense I don't think any of your assertations stated above are correct. The SVT and standard 2.5 are essentially the same engine with the only changes comeing from a different piston to bump the compressions slightly and better breathing characteristics. If there is any correlation with them failing earlier than most standard 2.5's the better place to look first would be driving styles causing excessive wear, not poor component design. On the issue of the oil pump, you go straight from saying oil pump cavitation to being rod failure so you leave a very mixed message on what you're trying to say is the real problem. I agree the oil pump could suck air and cavitate but it's most likely due to lack of oil in the pan to properly cover the pickup. On the final point, the rods are identical in the 3L and 2.5L so that's an invalid statement.
Does that clear it up in a more nicely put fashion?
Thanks,
Rick
