I hate how the quads re-arrange themselves every day. It's a very disingenuous feature of the NET. You should get credit for how good that team was when you played them - and I understand that can be challenging to rank teams with these advanced statistical models earlier than halfway through the season.
Take for example football. If you played Maryland in September this year (or any year really), it's more akin to playing Ohio State. Play them later in October, not so much.
Same thing in basketball. Playing Purdue in November vs late February.
A team that lost it's star players and plummeted down the rankings by the end of the season shouldn't negate how great a win over them early in the season was.