Look at the last Sunday before advent. It is the 34th Sunday in Ordinary time and celebrates Christ the King. It is the conclusion of a year long reading of one of the gospels in sequence, interrupted by Lent/Easter. Since the Passion and Resurrection were covered during the “interruption” the readings are the last readings before the Passion, the Apocalyptic discourse in Mark, Mt 25’s last judgement, etc. These are a clear fit to Christ the King.
In the other system, it can be any of the 23-28th* Sunday after Pentecost. (*I am not sure those are the exact numbers, might be 22 or 24) The readings would accordingly be different depending on which of those Sundays it is. There is little sense of end of the year because the readings might be read on the last Sunday one year, or 3 weeks earlier the next year. It just stops however far we have gone into the sequence.
The same thing happens on all the Sundays. It is influenced more by the date of Easter than by the movement of the year. Does it matter that much to anybody? The systems cannot be easily reconciled, so you have to choose one or the other.