Your theory seems to be that the speed of information significantly increased the power the pope can wield and this is what allowed for the centralization of power.
I don't think the historical record shows that. The speed of information changed little from the time of the Nicean council to the council of Trent, yet the primacy of the pope was very much established by the latter, even if it was only formalized in the 1st Vatican council.
Even to this day church politics plays out over many months and years (just look at the recent SSPX situation which was a slow-mo train wreck), the speed of information doesn't seem very significant.
I don't think the historical record shows that. The speed of information changed little from the time of the Nicean council to the council of Trent, yet the primacy of the pope was very much established by the latter, even if it was only formalized in the 1st Vatican council.
Even to this day church politics plays out over many months and years (just look at the recent SSPX situation which was a slow-mo train wreck), the speed of information doesn't seem very significant.