I think resumes in general, and photos in particular are a bad idea, because if the boys saw how much of a disadvantage they are at, when compared to the girls, they would never have the guts to go on a date.
Think of it like the way the Shechina conceals its true essence, to enable us the ability to function in its presense. (If I’m not mistaken, this is also the reason women are charged with a greater degree of tznius than are men. They wield more power, hold more potential, and its not to be taken lightly)
No, better the boys they think they have the upper hand. At least this way, the shidduch has a chance of getting off the ground.