I cannot think of a scenario where if I needed help with something I couldn't have a 5-minute conversation with someone.
Slack conversations I have several times a week: "Hey do you have a sec to help me? I can't seem to reproduce X bug" "Yea, wanna huddle?" "Sure!"
I don't know what new skills someone would have to learn in order to do that.
The skill to actually want to do that. Some people are shellfish and don't want to.
I've had a mentor who outright refused to do any screen sharing calls with me. He only wanted to communicate in chat. So things that could be cleared up in a 3 minute calls took over 30 minutes of back and forth in chats. I hated him to the core.
I've noticed the behavior of several other colleagues (not everyone) changed while WFH. Many became more distant and hesitant to cooperate and lend a hand. Most wanted to lock themselves in a "don't bother me for anything, let me wrap my work faster, so I can sign out for the day early" kind of state.
And further, seniors should never be upset that a junior is coming to them for advice, mentoring less experienced people one of the main responsibilities that comes with seniority. (This isn’t to excuse help vampires of course.) So I disagree with with the framing.
Once you learn this though, it's actually easier to do remotely than in-person.
I do not understand why you would choose to generalize to such an extreme degree. How could you possibly have the confidence to speak in such broad terms?
Reflecting on my last 6 years of experience as an engineer (which includes both office-based work and being remote) this is not true at all.
Not him but it also matches my experience. Many have not learned to mentor remotely or just don't like mentoring and it's easier to show their contempt online vs face to face.
A full day of honing his own problem solving skills, which pay off quite a bit more over time than watching somebody else do it.