I actually welcome this, as it is confusing to have two different names for what is effectively one station. One would think Arrott Transportation Center had nothing to do with Margaret Orthodox when in reality, the former is just the feeder terminal right beneath the latter. They could have went back to PTC's "Margaret-Orthodox-Arrott" but really, that's a bit long winded.
I don't mind the use of "Transportation Center" either, as long as its a major multi-modal hub with several routes, which Arrott is. I would prefer the moniker "Terminal" be officially used however for 69th St and Frankford, since ALL modes' routes terminate there and none just stop there.
Honestly, how can one complain about selling naming rights to a station because of spatial confusion (which I agree with) and then complain about a non-commercialized naming change to assist in eliminating spatial confusion? They should honestly root some more of these out system-wide such as possibly renaming West Trenton "Ewing" (Good God how many people I've seen on the wrong Trenton)
What I DO hate is the "change for the sake of change" that occurred in 2010 with such changes as Route 100 to Norristown High Speed Line (and changing half the stations to their adjoining streets, but NOT the Paoli-Thorndale duplicates) and elimination of the R's. These were steps in the wrong direction.