Anaconda easier to lock than darce?

In a recent podcast with Nicky Ryan (I seen it on a YouTube video where he does a submission tier list) he says that for someone with shorter arms, an anaconda is easier to lock than an darce. This doesn’t make sense to me as the mass you have to lock inside your arms is the same, the opponent’s neck and arm. I have also found that neither one seems particularly difficult to lock up for me. Can someone elaborate whether this is necessarily true or not?