That's Echols' defense lawyer speaking there, so of course he's going to say they would have been granted a new trial and won. Besides, the defense are the ones who proposed the Alford plea deal to avoid the hearings which may have lead to a new trial.
I'm familiar with the witnesses testimonies, but I've not found any hearsay in them. If you have, please quote it here.
You've not provided anything straight from anyone else's mouth, but rather simply your impressions of what someone you refer to as the DA apparently said. Here's an actual quote from prosecuting attorney Scott Ellington, as can be seen starting around 2:15:30 in West of Memphis: "I believe these guys are guilty".
There was hearsay testimony. But that's not the state's fault. Defense counsel could have and should have objected to it. Additionally, sometimes a statement that is hearsay falls within an exception to the rule on exclusion of hearsay evidence, but that doesn't mean it's not hearsay, it's just an exception to the rule and allowed. Hearsay testimony sneaks in all the time in trials and no, I'm not going to go back through 1000's of pages of testimony just to give you an example.
I did pull the language though from the DA. Starting at 1:52 of Paradise Lost - Purgatory, the DA "This Judge was most likely going to grant a new trial and if this Judge granted a new trial the defendants most likely, I mean we would do the best we could to put on the evidence, but most likely these defendants ahh, the state believes ahhh could very easily have been acquitted."
Sounds to me like he's saying the evidence would not support a conviction, regardless of his personal beliefs. Furthermore, at least in those clips, the only reference to financial concerns was over a lawsuit by the defendants against the State of Arkansas.
"We've also, as part of a, I mean with their entry of a plea of guilty, wehave removed the question of, um, of, of of them filing a civil lawsuit against the state that could result in many millions of dollars. I can't say that wasn't part of my thinking..."
To suggest that the State of Arkansas cannot afford to prosecute criminals or would free anyone that they truly believe were guilty is disingenuous.