Yeah sure, but that's a platitude that doesn't warrant anything.
> Students [...] aren't shallower or less educated than those [...].
Proof needed. You can't just say that.
> I have younger relatives who can't sustain their attention to read a book to save their life but still earn excellent grades because they were born into a world of technology.
The tests and grading norms have changed. It's been shown that (in some countries), secondary school pupils aren't able to pass maths and physics exams from 30 or 40 years ago. Being born into a world of technology only makes you apt to using that technology. It doesn't make you smarter or provide you with more knowledge. As a counter anecdote: quite a few secondary school pupils know that there's an infinite number of primes, and that E=mc^2. However, they've got no clue at all to what that means or what it's good for. It's just factoids, not maths or physics.
And in relation to the linked article, those excellent grades are irrelevant. And you even admit it. Young people don't read. Won't read. Can't read. Literature is pretty much doomed. Your cultural relativism doesn't assuage that.
But can pupils from 30 or 40 years ago pass today's exams?