the foreign relations glance screen was redundant, plain and simple. that alone is enough reason to ditch it. clicking on a leaderhead is not difficult. a screen that tells me Boudica is -6 with me means nothing, it's just a number. the other screen gives you a better visual understanding to quickly see who is friendly, cautious, etc. the hidden math underneath all these relations can be viewed just by mousing over the leaderheads on that same screen.
It's not redundant. I don't use it to see how the AIs feel about me, I use to see how they feel about each other. It's even more useful for comparisons: If an AI is +6 towards me but +8 for my rival them I have a good idea that I won't get their vote for an AP or UN election, so maybe I need to bribe them a little more.