I would say that’s a consequence of Western Triadology generally. For instance, take Augustine’s classic analogy of Father as Lover, the Son as Beloved, and the Spirit as the Love between them. It’s a beautiful analogy, except that it depersonalizes the Spirit. Once the doctrine of Double Procession was codified, or rather “canonized”, as official Western doctrine, the West would have a harder time describing the Spirit’s role in the immanent Trinity and in the economy of salvation. The Western Mystics didn’t face this trouble and neither did the Eastern Church.