You're gonna get hundreds doing an ADL run? Unlikely, especially with the DL rate nerf.
The fact is the trials are pretty fucking stupid and offers very little for non-relics at the cost of requiring an alliance to win. If I shout ADL, I can offer w/e shit currency falls from killing trash mobs, the drops from the popped NMs (which arent 100% drops), DL drops (largely shit) and ADL drops (not in high demand).
No one is going to waste their time helping people unless it's just for fun. The trial is designed poorly through and through. You having to bring up mules shows just how low demand would be to assist relic holders up to 99.