Wow. That was pretty hard to get through and I intend on re-reading it. Your information leads me to believe that once again Rome has set itself with having to come up with all kinds of "reasons" why they make all kinds of asserstions that people tend not to question because they make things so absolutely convoluted with each new "organic" change.
This is far worse than the IC dogma. Ouch.
Yes. Sadly, Rome has confused two different realities: (1) the
procession of the Holy Spirit as hypostasis (person) from the Father alone, and (2) the Spirit's
manifestation as divine energy (i.e., as uncreated grace) from the Father through the Son. In other words, the Holy Spirit
proceeds as hypostasis from the Father alone, but He is
manifested -- both temporally and eternally -- from the Father through the Son, not as hypostasis, but as divine energy; and this
energetic manifestation expresses the consubstantial communion of the three divine hypostaseis within the Godhead. As a consequence, the Spirit's
energetic manifestation through the Son must not be confused with the
hypostatic procession of the Spirit from the Father alone, because that would ultimately lead to Sabellian modalism.
Now, this distinction between
hypostatic procession and
energetic manifestation has been taught by the Holy Fathers (e.g., St. Athanasios, the Cappadocian Fathers, St. Cyril of Alexandria, St. Maximos the Confessor, St. John Damascene, et al.), including St. Gregory Palamas, who said that, "As energy the Holy Spirit is of Him [i.e., the Son] and from Him, being breathed, sent and manifested; as existence and hypostasis, however, He is 'of Him' and not 'from Him,' but from Him [i.e., the Father] who has begotten Him [i.e., the Son]." [St. Gregory Palamas,
First Apodictic Treatise, I, 37, 12-15]
For more information on the difference between
hypostatic procession and
energetic manifestation, you can click the link below in order to read the Tomus of the Blachernae Council of A.D. 1285, which officially rejected the "union" council of Lyons II.
Exposition of the Tomus of Faith against Beccas:
http://www.geocities.com/trvalentine/orthodox/tomos1285.html