[RobbyS]

Men like Gilson and Maritain cannot be held up as typical and they were bitterly disappointed by what passed as Thomism by 1960. If anything destroyed the "Thomistic foundation" of Catholic philosophy, it was the dablers in the stertile neo-Thomism of the 1950s, which was so absorbed with jargon that it could not bother to
make itself clear.

[Maximilian]

If anything destroyed the "Thomistic foundation" of Catholic philosophy, it was the dablers in the stertile neo-Thomism of the 1950s, which was so absorbed with jargon that it could not bother to make itself clear.

Isn't this a perfect description of the pope's writings, and wasn't he precisely a member of the generation you describe? Jargon is his watchword and incomprehensibility is his motif. He wrote "Love and Responsibility" back in the time frame you are describing, and it perfectly matches your criteria for what really killed Thomism.