Accepted for a PhD, only want to earn a Master's

If your end goal was, in fact, a PhD from another program, then you made the right call. Mastering out of a PhD program may have been viewed differently than attending a terminal masters program by the admissions faculty at the programs you really want to attend. You may have had more explaining to do about why you left and are now applying to different PhD programs. It’s one less concern you’ll have if you do decide to apply to PhD programs later on.