I was thinking that instead of getting rid of the limit, just allow the excess production flow to the next project in the que.
But then that production is just flowing into a sometimes never ending stream of minimum 3 turn buildings, so there's no real benefit, except maybe a free building after 20 turns of inflated production times for minor structures. There are a lot of resources to upgrade.
We're supposed to specialize in city types. There should be real benefit to investing a production city.
Even if a production city is able to produce a shrine in 1 turn, that's balanced by the fact that we're currently forced to upgrade resources through cities that arent specialized in production, so even some hapless Conclave with low production has to chug along producing resource buildings, instead of the buildings it needs to be the city it's supposed to be.
I just wish wild improvements could go back to a separate production process, and then you could balance the cost of the other things around however long you think they should take without having to compensate for all of those wild resources now gumming up the works as well.