"In general, today's younger musicians are indeed more knowledgeable and "technically advanced" in musical terms"   That is your opinion, my opinion based on what I see and hear is that there is no evidence to suggest that they are any more or less so. I still see young bands who are crap and or very loud and doing things purely to be different, and young bands and solo musicians who are very good, neither is there any proof that they are any more knowledgeable than previous generations.