You have to take into account the ratio of people that enjoy Eureka and people that don't enjoy Eureka, as well as how that ratio holds up to all the other content in the game when it was new/fresh. Do you honestly expect SE to just remove Eureka because some people don't enjoy it and put something else in its place? Even if they did that it would not happen right away, in fact probably not even for months.

That said, it is nice what reply we actually got. It's honestly something at least I didn't expect.