I respectfully disagree with you in this case (though following your posts, much of what you say is meritorious).
That being said, these sorts of things are what modding is for... if you don't like a game mechanic, you change it. I think predictable Eurekas (and inspirations) lead to a familiar pattern of build and tech choices... the Let's Play games I saw (mind you, of limited scope and not deeply in the tree) tended to follow the same patterns as far as getting Eurekas goes. I'll take it to the modding forum if that tends to be the case and it bothers me enough

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