I think these comments are tremendously revealing.
Tony Blair won't "make peace". He doesn't have the power to do so. Only Hamas, Fatah, Hezbollah, Iran, and all the other combatants can do so.
Tony Blair, working with lots of other people but he brought it together, proved that he had the ability to persuade the brainy people up front of the hoods in Ireland to see the point and value of ending the killing and extortion, and helped them to persuade the hoods doing the kiling and extortion of the value of not killing their leaders but going along with it.
This was the end result.
On the one hand, the zealots are even more zealous than in NI, but on the other hand they've seen that it's worked in NI.
God knows if it will work, but Mr Blair seems to have all his skill and charisma intact and there are few better than him to do it. Bit you're right - he is no Gandhi. Nobody is asking anyone to admire or like him for his attitudes.
And for those who don't really want the combatants to stop their killing and destruction if the alternative is a "sell-out" - a few years' considered silence would be helpful. It isn't you who have to do the dying because a bunch of politicians and clerics in a country far away can't see the point of making compromises.