Doubt it...people have run 500+ lb-ft through D44s for years without issue. More likely an efficiency tune or cooling issues or both. They had to alter the gladiator front end to improve cooling under load. There’s also no mid-size or full-size pickup towing/payload/torque war to keep up with in the Wrangler segment so they can prioritize efficiency for fleet fuel economy purposes.
Even Dynatrac doesn't want you running a V8 with their PR60 rear. And the majority of V8's in JK don't make 500 tq at the crank.