One run, done right,
no learning curve required

Get exposure right on the one run you're actually printing.

A single test film and screen tell you the correct exposure time before you commit the whole run to it. See the exposure calculator and the step wedge generator.

Print straight from whatever file you've already got, no vector required.

It doesn't need to be. Screening artwork into halftones works from ordinary image files; a RIP or a vector file were never the requirement. See halftone films without a RIP.

Print the film once, right, on a small materials budget.

The right driver settings the first time avoid printing (and wasting) a second positive. See printer settings for screen-printing films.

Pick PNG or EPS in ten seconds, without needing to know the difference.

Same halftone either way — the real answer is about where each file works, not which is "better." See PNG or EPS for your films?.