More information is always better, but only if it actually matters. Which is why I also said:
Honestly, you took one line of what I said, misrepresented it, and then completely ignored the rest of my post.
Long story short, here's what I'm saying:
Let's say you have Team A and Team B.
Team A has lost to the #1 team by 20 points, beaten the #5 team by 20 points, beaten the #6 team by 2 points, and lost to an unranked team by 30 points.
Team B has lost to the #2 team by 5 points, beat the #4 team by 25, beat the #8 team by 10, and lost to an unranked team by 10.
Which team is better?
I see two teams that each lost an expected game, each won two top tier teams, and both lost a game they should have won. Who cares what the margin of victory is in this scenario. Truthfully, for most common opponent games, unless the margin of victory is something like a 30 to 1 disparity, the margin of victory is a worthless stat without looking into a plethora of other scenarios that lead to those margins.
Now, in the grand scheme of things, really we're talking about stats and figures to sort two teams that are basically comparable. I don't think you get it wrong either way.