Add pomegranate juice, oil, molasses, vinegar, pepper, salt, and thyme to non-reactive boil and whisk together until ingredients are incorporated. Pour into heavy-duty zip-top bag and add sirloin steak(s). Seal top and gently toss a few times to coat meat. Marinate in refrigerator for 30 minutes to 6 hours.
Meanwhile, prepare vinaigrette by simmering the pomegranate juice in non-reactive saucepan until reduced to 1/3 cup, approximately 9 or 10 minutes. Remove from heat. While still warm, stir in the honey, salt, balsamic vinegar, and olive oil; set aside to cool.
When ready to prepare steaks, heat grill to 400 F degrees. Drain and discard marinade from steaks. Grill steaks for approximately 5 minutes per side, flipping once. Remove from grill when instant read thermometer reaches 135 F degrees when inserted at thickest part of meat. Let rest for at least 5 minutes while prepping salads.
To prepare salad, divide spring mix evenly among four plates. Top with halved figs, pomegranate arils, almonds and blue cheese crumbles. Slice steak thinly across grain and top each salad with 3 to 4 ounces of beef. Drizzle with vinaigrette and serve immediately.