From the linked article:
Earlier flight tests had demonstrated that the intended 24m (80ft) hose was unstable due to the vortices generated by the need to deploy the A400M’s spoilers to achieve the low speeds required of around 108-130kt (200-240km/h), Onera says.
Wait, what? "Deploy the spoilers to achieve the low speeds required...." Certainly this is an error. Could the author have meant "deploy the flaps?"