Despite all that the average MLB salary has gone up quite a bit. Not sure about median salary? So I don’t think the players will have much sympathy from the “average” fan.
https://www.statista.com/statistics/236213/mean-salaray-of-players-in-majpr-league-baseball/
Even the mean has declined every year under the current CBA despite the minimum salary going up every year. That - and what the graph you provided would look like next to owners' collective profits on the same time scale - are what really will matter.
Also, when it comes to the choice between millionaires who provide actual entertainment and billionaires who rake the profits, I know where my sympathies lie.