When Player Core 1 (PC1) was published it included new rules for Long Jumps. To summarize, the result of a Long Jump is now determined by the result of your check and not the DC of the check (the DC is now static).
In Player Core 2 (PC2) the text of both Raging Athlete and Sudden Leap are mechanically identical to the Core Rulebook (pre-remaster). (And the Felling Strike option seems to only be Fighter now.)
The problem with Raging Athlete is that the DC reduction no longer increases your Long Jump distance. Instead it just prevents crit fails on the skill check.
The problem with Sudden Leap is that it says to determine the DCs for High and Long jumps based on the DCs for Long Jumps, but the DCs don't effect your distance, your degree of success determines distance. So you can only ever jump 8 ft up maximum with a Sudden Leap.
Was this an oversight? Were there supposed to be adjustments for these feats? Are the nerfs intentional?