---Our views often harmonize, and we can keep our tone civil when differences of opinion become discordant.---
said Mrrzy in OP, which I checked back on in considering the question in his last post.
It would have been nice indeed; but fat chance when one persistent poster, as he has done in several threads before, hijacks this one in pursuit of an irrational personal vendetta he has been obsessively pursuing with another of our number. Carroll should be ashamed of himself; but I don't expect for a second that he is.
As to whether the exchange will turn out to be a good thing: depends on whether the Palestinian authorities can contrive to control the "destroying Israel is the priority" element in their midst, among those released and among their populace at large; which they have shown scant ability to do up to now.