I think this is a straight up difficulty reducer for the sake of it. Statecraft/any CS play is very easy and extremely powerful already. Picking hotel as an example is extremely bad, as 90% of the time CS will ask for a building you need like markets, walls, etc. If you don't want a building, just finish one of them in any of your cities and you won't get the quest. This change will lead to unearned wonders for the player. You should be supposed to take an effort/additional cost for quest that gives not only production but also CS influence.
I'm fighting the lost battle here, but this proposal is just bad in my opinion.