Ruin Explorer
Legend
Er... no. At least, not so flatly and generally. If nothing else, compulsive internet use and ADD are real things, and we are GMs, not mental health professionals.
There are other, less clinical problems, where the major issue is still on the player's side, not the GM's.
I think the generalization - "all you guys who are complaining about distraction are just bad GMs!" - without having discussed it at length, is pretty dismissive.
Amusingly, I have adult ADHD, but as I DM, rather than play, my attention is so constantly in demand, it's never an issue (well, in-game - it can be in trying to get organised, which is why I prefer games which require lower levels of prep).
The only digitally-mediated thing I've seen that prove problematic is needy SOs (of either gender) who regularly text/tweet and expect their other half to be attentive/responsive to that even if it's not like, in any way time-sensitive. Nothing DMs can do about that, though. Oh that and employees/bosses who have no respect for boundaries or work hours, and who feel like they can get away with it more when they send texts/emails rather than phone and actually have to talk to a human.
But yeah, I don't think most distractions are within the purview of the DM. Some players don't have distractions, some do. Some can also multi-task so well that you might think that they're distracted but it turns out they totally aren't.