Is this dicta?

The viability of a tort claim against T-Mobile, arising from delays in obtaining medical treatment, turned on whether this recent statement by the Texas Supreme Court was “obiter dictum” or “judicial dictum”:

Proximate cause requires both cause in fact and foreseeability. For a condition of property to be a cause in fact, the condition must serve as a substantial factor in causing the injury and without which the injury would not have occurred. When a condition or use of property merely furnishes a circumstance that makes the injury possible, the condition or use is not a substantial factor in causing the injury. To be a substantial factor, the condition or use of the property must actually have caused the injury. Thus, the use of property that simply hinders or delays treatment does not actually cause the injury and does not constitute a proximate cause of an injury.

The Fifth Circuit concluded that the statement was judicial dictum entitled to deference in an Erie analysis, and rendered summary judgment for T-Mobile. Alex v. T-Mobile USA, Inc., No. 18-10555 (June 6, 2019, unpublished) (applying City of Dallas v. Sanchez, 494 S.W.3d 722 (Tex. 2016)). (My Pepperdine Law Review article with the University of Idaho’s Wendy Couture remains a strong summary of the underlying theory.)