yungermanS: The Rambam, who laid out the very principles of our emuna, said that one’s shidduch is based on hishtadlus, not on bashert (See his letter to Rav Ovadiah Hager). He says that every mitzvah requires and is determined by hishtadlus, and getting married is a mitzvah.
Would you be OK with someone who davens that Hashem should send him a succa and teffilin without actually going out and using hishtadlus to obtain those mitzvahs? (See also Pele Yoetz Zivug who says that shidduchim requires “a lot” of hishtadlus and failure to do so may result in one losing his shiddduch).