Pretentious? No. Do I know when someone is talking gibberish? Yes.Lol ok pretentious much? I followed the manufactures instructions as the gap was preset, you don't...so o well?!? Never said I didn't know how to do it just said it wasn't necessary now.
If you never checked the gap, then how did you conclude it's never necessary?
Do you understand these plugs get handled in all sorts of rough ways, even at the factory before it gets packaged? Then there is handling by probably hundreds of people by the time you get them. All it takes is a tap on the ground electrode to have a too small of a gap. There is also variance in production, so the gap can be too large right from the start.
It takes literally few seconds per plug and a feeler gauge to check the gap. Quality ignition coils are not exactly cheap these days, and knowing, you have the optimal gap right from the beginning ensures their long life.