Regarding Philosophy, itself, ignoring entanglements of Theology? No way. I knew seminarians in the early 70s who considered Thomas to have been superseded by Kant, the Phenomenologists, (the Existentialists for a couple of guys, although those guys were considered flighty), all the Language people circling around each other in the 20th century, and couple of others. They respected Maritain and Gilson for their historical perspective, but did not think that either of them was producing ground-breaking insights into Philosophy.
I have trouble even believing that this was true in 1945. On the other hand, I only peeked back a little bit at the pre-Vatican II church, knowing its pastoral and liturgical presence much better than its philosophical or the theory behind its theology, so I could have missed something. In addition, the Catholic Church in England had its own traditions, showing a love-hate relationship with the Church of England, and this may have spilled over into the way Catholic schools approached philosophy.
The rector of the Cleveland seminary helps out at my parish on some weekends. I cannot promise an immediate answer, but I’ll ask him how strongly his school is pushing Thomas in the Philosophy Department. (My guess is that it will be little different than the situation of the Detroit seminarians I knew 35 years ago, but I’ll ask.)