Interesting - so what do we think actually happened?
From what little I've gathered on here in general is that Festa runs on one grid that also includes San Marco and maybe EfP plus VB, Germany from Oktoberfest through France is another and the last grid is front of the park and the UK countries. I'm probably not quite right there, so please correct this if you know otherwise.
With DK going extinct, more power on that grid became available - however, while FF technically should be on a different grid it's possible they wired it to where there was available power.
Because of the power draw on the Festa grid already being taxed, VB and I forgot the other ride (Tempesto?) aren't able to use their launches simultaneously without VB's launch after the drop track suffering.
So is it possible that Pantheon is on Festa's grid, which then allowed them to also place FF onto Ireland's grid and free up extra power back into VB? If that's the case, it raises a question about what's left for 2021.