No your missing the point. Fantasy's have storylines. Storylines must be followed, and your disregarding it.
Time Compression has never happened in the game. People can't live in a fully time compressed world. The game states it. Ultimecia tried to, but could only do it with Ellone (the game never states there is another Ellone in the past so saying there is one would be a whole new theory, theories can't exist of other theories), since no sorceress had ever had Ellone no Sorceress could even attempt Time Compression.
Again start using dialogue from the actual storyline, not theories upon thoeries.