Well, without doing an in depth analysis; it was the feeling and his voice. Tom's voice sounds(to me) extremely similar to the lead singer of SOAD. The songs that came to mind were Violent Pornography and Aerials(Life is a waterfall one in the river and one again after the fall). Also I feel that they are similar in the sort of subversive and comedic way that real flaws in the society of the time are addressed in each song.
That's all just post-justification of my opinion though. The truth is that when I listen to this music it gives me the same feeling as when I listen to SOAD.