Ok so here is the thing, in PoF we were trying to stop Balthazar from killing Kralkatorrik or else all of Tyria goes boom.
However during The Way Forward we learn of what needs to be done to end the cycle without destroying Tyria.
The most important line is: We theorize these vacancies must be filled with entities that circulate and share magic rather than hoard it.
Hmmm now who could fit that role? Oh wait don't "The Six" share their powers with mortal races? If one thing Guild Wars taught us about the Gods is that each profession draws its power from a god/s. Like Necromancers gain their power from Grenth, Warriors from Balthazar, Mesmers from Lyssa, while some draw their power from several like Elementalists who gain power of Water from Grenth, Fire from Balthazar, Air from Dwayna and Earth from Melandru.
Yeah it sure looks like the Gods would fit the "sharing" bit nicely. And if Balthazar taught us one thing during LW3 and PoF storyline is that the Gods can take the power of the Elder Dragons for themselves. So why couldn't they take care of the problem then? There are Six Gods and Six Elder Dragons, so they could kill each Elder Dragons in turn and each God could replace one every time it's done. Grenth could replace Zhaitan, Melandru replace Mordremoth, Balthazar replace Primordus, Dwayna replace Jormag, Kormir replace Kralkatorrik and Lyssa replace the DSD - problem solved.
So it seems Balthazar was right in calling the other Gods "cowards" because if they all got together from the start and fought the Elder Dragons none of the current mishaps would have happened. It seems it's true that the Gods abandoned us and left us to be consumed by the Elder Dragons.
Even if we argue that due to "something something" the Gods couldn't replace the Elder Dragons themselves it doesn't really change anything.
Our conversation with Kormir proves they knew what killing the Elder Dragons would cause, ergo they must also know that the only real way to end the cycle is the find replacements.
So even if they couldn't do the job themselves they could have at least shared their knowledge with us from the start. They could also provide us with "the means" on how to replace the Elder Dragons once we start killing them, they did that for Kormir so she could replace Abaddon. But no, they instead sat quietly on the side and now that things turned for the worse they made a run for it. Well, praise the Six