I did not say that the people were abiding in anything, but I see how my miswording contributed to that assumption. I was speaking of principle, not people. I believe this is an issue - if there is an open door to read into a statement then you often see fit to walk through that door. I believe this is what you did with the passage in question as well. You are missing the forest for the trees.That is not what it says. You are changing what it says to conform to your (false) understanding. Rather you should change your understanding to conform to what it says.
It does NOT say that the people were abiding in faith hope and love. It says that faith hope and love would abide (μενει = continue).
So, to reword my statement (more correctly) we disagree because I do not believe that abiding faith, hope, and love....these three...was at one time incomplete without sign gifts. I do not believe Paul was teaching why sign gifts ceased but rather uplifting love amongst the things to be sought.