Even I felt the same when you mention about "labelling" in your previous comments. I am not trying to trigger you on the game aspects. Just conveyed the reasonable stand point for other players after a year time passed, why to make them stand outside for one year old buildings.
I agree, daily special they have a chance to get multiple times the same reward. But making them displayed in event silver league, hope you don't have any complaints.
I am asking to bring a standard approach on every event,
Sweet ginger bread house,
Skull cave,
Trailside,
Zephy,
.
.
.
Placing the relevant event gold league building which are atleast one year old to be kept in the relevant event silver league rewards. This approach won't make you feel frustrated I believe. Even if it is frustrating you, try to cool down yourself since many players will become happy with this silver league change.