I'm a fan of "Fitting the Story" in the amount of episodes, if it takes 13, let it take 13, if it takes 8, same. However, I'm really not a fan of these 8-10 episode seasons, especially when they don't stick to decent episode lengths (looking at you Mando) Some ep are like 30 min others are over an hour. sheesh..
The Flash got it right at the end where they had a story, finished it, then moved on to another story. Also Flash and other arrow verse shows were still 20 episodes.
Sweet spot for me is 13. that means if you have 4 shows, that fills out the year.
As for the question of the thread? No. I don't think so, maybe an animated like prodogy that has 20 ep a season.. but a live action is a negative.
Also, if you remember Stargate Atlantis, it was 5 seasons, and at 5 seasons you have major renegotiations.. So the series would cost more to produce. But you also have Dwindling viewership. So if its still going strong, then you maybe could afford it, but I feel most would get 5 season, if that, and be done.