It's always interesting how receptive people are to news they want to hear.
I'm not saying the OP isn't well meaning, or that he's necessarily incorrect. But rather than dispel any rumors I think he's only added more fodder.
Not that he isn't skilled, but we're talking about 1 tech from 1 dealership, and at least some of what he's said contradicts info and data coming from Flat 6 and LN Eng. and also from a source which long predates F6 and LNE and established info and fixes on some of the nagging issues of the M96 motor back in the late '90's - Autofarm in the UK.
If the Type M96 plague hasn't struck you, you're probably more likely to side with Brian PT.
But, if you're the proud owner of an alloy boat anchor manufactured in Stuttgart, you're likely to remain somewhat more skeptical.