Almost No Verifiable References to the First Two Chapters of Galatians in Clement of Alexandria

It has been noted by others that the Marcionite Apostolikon shows almost no sign of the first two chapters of Galatians aside from the first line. Curious too that almost no references survive in the Stromata from this same section. Almost all of our references come from the Hypotyposeis and that comes to us from second hand sources:

Galatians 1, 19 Hypotyposeis (p.199, l.27)
Galatians 2, 9 Hypotyposeis (p.196, l.7)
Galatians 2, 11 Hypotyposeis (p.196, l.10)
Galatians 2, 19 Stromata 3 106 § 4
Galatians 2, 20 Stromata 3 106 § 4
Galatians 2, 20 Stromata 4 12 § 6
Galatians 2, 21 Quis dives salvetur 8 § 2

Very, very curious ...