The only reason why it's dog eat dog for claiming training regime mobs is because the zones available to use FoV are rather limited. The benefits and ease of use of FOV have exploded in popularity but at the same time constricts the population into a handful of previously untouched zones.
Hopefully this update will help spread the trend thinner so people have much more relaxed practice of partying, soloing and low-manning for exp in these zones. In fact, I hope they eventually spread FoV into CoP and ToAU based zones.
Not really necessary for WotG since we got campaign battles and ops anyways.