Except the problem is that ten episode seasons are not all ways "beyond great". You will still get 3-4 waste of shows, but out of 10 shows that is about half the season. It's bad enough too many shows do a good shows 1 and 2, then just have filler for 3-9, then suddenly have a good show for 10.SyFy channel has been running Charmed around the clock. Must have been a discount for syndication? Anyways, that show demonstrates exactly what a 20 episode season stretch gets you on average. Folks remember the absolute best shows, but forget how much chaff came with that wheat. I'll take the better production values any day of a 8-10 episode season.
I get the super LAZY showrunners don't have to work hard. They can sort of "work" and put out ten short, easy episodes for a couple weeks, then party for the rest of the year living of the fame of "yea I made show X".
Maybe do two show runners a show? Hire one "super awesome vision wants to make the show and party" dude and then hire one much more normal grounded non-Hollywood person to do the other epsiodes.