As a first approximation, the answer to all “why aren’t people talking about X” questions is the same: because there are a lot of potential topics to discuss, people are busy, and no-one, including you, has written a post about it yet. If you want to discuss X, it is generally better to just write a post about X, rather than a meta-post about why no-one is discussing X.
[Also EAs have discussed this a bunch! Just not on the forum.]
As a first approximation, the answer to all “why aren’t people talking about X” questions is the same: because there are a lot of potential topics to discuss, people are busy, and no-one, including you, has written a post about it yet. If you want to discuss X, it is generally better to just write a post about X, rather than a meta-post about why no-one is discussing X.
[Also EAs have discussed this a bunch! Just not on the forum.]