What I like about the facility income transactions page is its simplicity. It's simple and easy to see exactly (and only) the information I care about.
For example, let's say I'm looking to buy a facility on Random Planet A, and want to check to see how much my facilities on that planet made last month:
Using the Facility Income Transactions page, I click "Planet" and it sorts by planet. I find the planet I'm looking at (ctrl-f and type the first few characters), and I'm done. The incomes are right there, the only thing in their column, and I can quickly see all of them, without any extra clutter.
Using the Facilities Inventory 2.0 page, I have to click the "Filter By" button (which doesn't really have an obvious icon, either...I think a list with one item bright and the rest dimmed would be better, as it is it just looks like it's setting up a tree view to me), then select "Planet," then scroll through to find the planet I want, click it, click "Filter." The incomes are then nestled among several icons and health bars (or tucked inside a block of text), and I can't see all of them easily in one glance.
One thing that is nice about the Inv2.0 version is the ability to see a several-month income history for a single facility, but what if (in a similar vein to the above request), I want to see the previous month's income for the facilities on a given planet? The FIT page made that easy, I don't even know if it's possible with the Inv2.0 version...
Sorry if that was kind of long and rambling, it's been a long day.