I was actually hoping for 4 seasons. Considering how they put 4 different, excellent stories in season 1. Season basically told a single story (the Ghorman massacre) spread out over 4 years. There were many moments where I'd hoped they'd dive a bit deeper into some other aspects, like what would become of the Maya Pei Brigade, the stolen TIE Avenger, other missions where we see Andor grow into the expert spy that he's clearly become. And of course more about how they bring the various parts of the rebellion together, the move to Yavin, etc.
I think there was more than enough room to fill at least another season. Maybe two.
It built tension by itself. Time skips reinforce the idea that things are _moving fast_.
If we didn't have them, it would turn it into a drag. A dramatic year looks much more impressive when you compare it to what was a year before, than when you look at it day by day.
Thank god. There's not enough meat on the bone, the writing would never have been good enough to support this.
We need more excellent, tightly spun stories.