And what you "old timers" do not understand is just because you're not familiar with something doesn't mean it is bad or you should discredit it. Like the old saying don't knock it 'til you try it. Don't get me wrong, I love the sound of a high lift, wide lobe separation, high compression, cam in block v8 (my favorite engine is the FE line), but we must progress.
And guess what, you can still work on these engines too. Do they require different knowledge than what you have yes, do they require different/specialty tools yes, tighter and more accurate tolerances yes, but the theory is all the same behind it.
I have tried it, I've owned numerous smaller displacement fi vehicles, I'd still rather have a big v8 in an American truck.