🎀 Wisteria 🎀

And gathering on Skype by voice for a game session — is that too social for HeroesWorld?

From the players' perspective — it would require regularly gathering everyone at the same time, and I mean everyone, that is 5-8 players, just imagine. And even our Shadowverse games, which last only a few minutes and are 1v1 duels, had trouble being played at the scheduled time back in the day, if I remember correctly.
From the GM's perspective — creating a deep setting and plot for such a format would, I bet, make even Reven go crazy, because in real-time you don't have time to improvise or adapt; everything has to be perfect and polished down to the smallest detail from the very start. And a shallow game isn't interesting to anyone here; the audience is picky.
Unless it's some kind of linear adventure like "a group of expeditioners once entered a dungeon" — that I can imagine, but that's just one possibility out of many potentially more interesting ones.