So wouldn't, by the same logic, it be best to gate the MSQ and thus future expansions behind raids? Because that most certainly would be called a "worthwhile" reward.
The way I see it, raiding just isn't considered fun by most and therefore, people are rightfully asking the question: "Why bother?" Rewards are and will always stay a bribe, a compensation, damages for pain and suffering. A means to get people to do something they don't enjoy (for whatever reason). And similarly, if people rather go do PotD than Sophia EX for a i255 weapon, they enjoy PotD more - which says quite a bit, considering learning and then farming Sophia is faster than getting a Kinna from my experiences. But that's assuming the weapon is the "only" thing people want from PotD and they don't care about the loot pinata that is hoards.
As such, I am glad they aren't trying to "motivate" people with excessive rewards. I think they are already overdoing it in many places.
That said: I personally wouldn't raid if I hadn't been asked to join a static and the social activity is all that keeps me. The raids themselves are just a big, punishing game of memory, which is not overly enjoyable and I can sympathize with everyone who nopes out and rather does something else instead.