Joseph, so now it’s ok because goyim do it?
What happened to chukas goyim?
There are many things that can technically be done on Shabbos by use of timers ( i.e. turn on a radio ) but we don’t because it violates the spirit of Shabbos and the intent of chazal. So, yes, technically a marriage officiated bya frum layperson is not recognized by the state, it violates the spirit and intent. We are supposed to be and claim to be, at a higher madrega.