Eren was very impressed with the effects of RDX.
He had faced fewer troubles dealing with Goro's team because of the detonation. All it needed was for him to finish the job. And that's what he did after appearing at the scene.
What Eren detonated was not a commercially available product but something he had hidden from market exposure. It packed twice the destructive power at the cost of making manufacturing more difficult.
Alephee took care of the last ranker in the vicinity before appearing beside Eren. She pointed toward where Goro was fighting Oslo and commented.
"Hmm. Everyone's done for here except one. That Adept managed to run off."
Eren raised his eyebrows at Alephee's comment and got confused. That's because he saw nobody in the vicinity.