+1 Yes. I think one will run into trouble with any extreme position like "You can't reproduce the dynamics or channel localization without a real center speaker" or "Phantom centers offer superior matched speakers and will always beat a center speaker."
Someone using two towers producing a narrow sweet spot with terrible side reflections in the room? A center speaker will probably improve on that, unless it's a terribly matched center or terribly placed.
Someone using the wimpy driver center in the cabinet (which is all too common!), the phantom might beat this.
I'll take Wayne Parham's CornerHorns as a phantom setup over most systems with a center speaker any day. Those speakers are designed with care to have a large sweet spot, even directivity, great dynamics, with a mitigation of reflections that contain the linear distortion of uneven power response.
If in some fantasy land most people didn't skimp on the center and didn't compromise its placement in the room, the phantom center would have little attraction and we'd only talk about it as a relic of oldtimers. Unfortunately, I see too many photos of systems with giant towers set to Large (yielding big bass problems) that can extend to 35Hz but have low sensitivity, with tiny center speakers. And I think, "Really? You're going to skimp on the speaker that 70% of the soundtrack's going to come out of?" And sometimes it's not the buyer's fault. What the manufacturer "matches" to their towers can be a terrible center.
It depends on the situation and what compromises are being made.