I have heard both pitchers and batters complain about the clock.
As for going home early, I think they may like it, but I also think pro athletes are highly motivated and competitive and likely take the game home with them more than say a 9-5 office or factory worker. Given all the travel and post-game BS they have to endure I think it probably takes a full day off for them to wind down which is why these are baked into the CBA. They probably don't like the really long games more because it takes them out of their rhythm and tires them out fot the next game more than wanting to punch out early.
My original comment was about whether fans liked the extra inning runners. I have seen a lot of fans say they hate it. I have seen a lot of fans say it's tolerable and practical, more and more each year as would be expected. I have't seen much enthusiasm for it, but the group of fans I followed is biased.