OK I want to understand.
Here is a hypothetical using tropicana's doomsday scenario of the "mega-salary-dump trade" "with better players involved".
My team has won the division 3 yrs in a row. This season. however, I have suffered injuries and the team has just underperformed in general. Meanwhile two division foes have improved their clubs and their teams are slightly overperforming. It is the All Star Break and I am 10 games behind both. I am also 12 games out of the last WC spot. Now my Ace SP goes down and is out for the season.
I have an MVP candidate 3B who is 34. He is making the max 20M and has another yr on his contract after this season.
I have a very good replacement in AA. He is better defensively, but he has only 75s across instead of 80s and 90s like my "stud 3B".
I decide that in all liklihood I am not going to make a run this season, and turn my eye to next season.
If I can dump this 20M salary right now, that means I could transfer 5M to my prospect budget and have a much better chance at signing an IFA SP I am in a bidding war for and am almost at my current limit. Additionally this will allow me to have another 20M next season to use in the FA market,
So I propose a trade to a team who is close and wanting to acquire an impact bat.
I only ask for one very very good defensive SS prospect with NO bat and a DH ( I'm in the NL) The DH is a LH specialty power hitter prospect, who is has awful fielding and low ratings everywhere else but is currently 69 vs L 93 PW and a 50 CN. (These are 2 key role players my team currently lacks).
I get the 2 role players I need. I get the IFA SP I was bidding on. I promote my rookie 3B and have 20M to spend in FA next year.
The other team makes the playoffs and has a great shot again next season with his newly acquired stud.
How is this trade (involving one of the best in the world) bad for the world?