It must have been an incredibly exciting time to be alive.
As the article pointed out at the end, it's very likely this special conference call was only possible due to special sponsorship from a big donor or telephone companies.
We get it, different times had different morals and ethics. But I'm sure the author would have been above all that if they were around in those times.
The same people who liked calling or attending meetings (managers) before virtual meetings are the same people who like virtual meetings now. The people who didn't like them back then are the same people who don't like them now. Nothing's actually changed.