Congrats on your publication! I am definitely a proponent of simultaneous submissions--they are a benefit to writers. My issue is when writers don't notify the other journals they submit to that they were accepted elsewhere, and that's where we can all do better!
Writer, reader, cat lover, and tea drinker. Poetry editor & podcast host at borrowed solace. Words in Adroit Journal, Vita Brevis, & others. AddeyVaters.com