The omission of the "ransom" (lutron) saying (Mark 10:45//) is also significative from this standpoint, as well as the emphasis on mercy or compassion (e.g. oiktirmôn as a substitute for Matthean teleios, "perfect" in 6:36; in the previous verse, God is characterised as khrèstos, "good" or "kind") and of course the ubiquitous notion of grace (kharis).
Yes, Carpinelli observes exactly the same thing, with the implication that such an emphasis sits rather uncomfortably with a soteriology of propitiation. In addition to the examples you cited, Carpinelli also cites the Lukan parable of the prodigal son which communicates well the author's view of God's forgiveness.
Although he does not make the point, I also wonder if the Farrer/Goodacre theory of Lukan dependence on Matthew may shed additional light as well, particularly Luke's redaction of the Sermon on the Mount. The two statements about the Law that could be most construed as embodying anti-Pauline (or at least anti-antinomian) rhetoric (Matthew 5:17-20, 7:22-23) are missing in Luke, although the watering down of the latter in Luke 13:35-37 may have in view the emphasis in Acts on charismatic deeds. The most striking thing is the omission of the command on almsgiving found in Matthew 6:1-4 which has no parallel in Luke despite Luke's repeated stress on almsgiving. I think the reason is that the point of the Matthean passage is that almsgiving must be done in secret, whereas in Luke-Acts it is public and forms an important part of community activity in the Jerusalem church. The command on prayer in Matthew 6:5-15 is handled a similar way in Luke 11, with the stipulation of it being done in secret omitted in the Lukan version.
Remembrance (mimnèskô ktl.) is a Lukan keyword from the infancy prologue (1:54,72) to the crucifixion (23:42).
The thing that is really interesting in Carpinelli's paper is the connection he draws between eis anamnésin in Luke 22:19, 22 ("do this as my memorial") and eis mnémosunon in Acts 10:4 ("your prayers and alms have ascended as a memorial portion"), and the use of both expressions in the LXX and in extrabiblical literature to refer to cultic memorials: "They shall be loaves as a memorial offering (eis anamnésin prokeimena) set before the Lord" (Leviticus 24:7 LXX), "All her merchandise will be for those who live in the presence of the Lord, to eat and drink and be filled, as a covenant, as a memorial (eis mnémosunon) in the presence of the Lord" (Isaiah 23:18 LXX),"The wicked who sacrifices to me a calf is like one who kills a dog, and he who offers fine flour like one who offers swine's blood, and he who has given frankincence as a memorial (eis mnémosunon) like a blasphemer" (Isaiah 66:3 LXX), "He chose him out of everyone alive to offer a fruit sacrifice to the Lord, incense and a pleasing odor as a memorial portion (eis mnémosunon), to make atonement for the people" (Sirach 45:16; cf. v. 9 and 11), "Then the sons of Aaron shouted; they blew their trumpets of hammered metal; they sounded a mighty fanfare as a memorial (eis mnémosunon) before the Most High (Sirach 50:16, concerning the ritual on the Day of Atonement), "Present your petitions as a reminder (eis mnémosunon), offer them as a testimony before the angels" (1 Enoch 99:3), etc.