Hi,
Someone I know went very briefly to a master who was a disciple of Fu Zhong Wen. This master taught him push hands first, and when asked about the form, said he would teach it later. He had some background in TCC, so this may have been why. Polaris, interestingly, he seemed to have a similar "weeding out" technique, but instead of using the form, the master would have beginning students practice different standing positions. I don't know much about TCC, and the person I know did not stay there very long, so I couldn't tell you much else unfortunately. Although I do think that he started most of his students with push hands.