Ati2
Legend
I assume that was all that they were ever designed to be - a substitute for the storyline quests if you finished those before you had completed the research for that era. The abort feature was to protect people against getting stuck on a quest their city couldn't do, or that they really didn't want to attempt.
I don't think Inno ever intended the Château Frontenac/recurring quest combination to be a means of generating endless goods by endless clicking, or that players would assert (as I have seen more than one doing on Facebook) that their daily routine involves repeating their preferred quest a thousand times while aborting 12-14 other quests in between, and that making this difficult is destroying necessary gameplay...
This is not new, this has been around for years. Did Inno need so much time to see what's going on in their game? :-o