SLAPPing around the Erie doctrine?

The Texas anti-SLAPP law (the “TCPA”) imposes a number of deadlines that can fit awkwardly with federal practice.  The panel majority in Cuba v. Pylant concluded that when no hearing is held on a TCPA motion as required by the statute (hearings being common in Texas state practice but not in federal court), appeal-related deadlines that start from the hearing date do not begin to run.  A dissent said: “Applying an Erie analysis, I conclude that the TCPA is procedural and must be ignored.”  Nos. 15-10212 & -10213 (Feb. 23, 2016).