The easiest explanation for the absence of the last accent in the sequence of chords in FE (→EE1) would be an oversight. In EE2 the mark was most probably added after comparing it with GE1; however, the shape of the mark was adjusted to the preceding short accents.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Long accents, EE revisions, Errors in FE
notation: Articulation, Accents, Hairpins