Lol. Are you serious? You think people who are running reaper (on higher skulls than R1) care about regular XP?
Here's a hint for you if you want to run reaper:
Reaper Tree Power > Epic PL > Iconic/Heroic/Racial PL's.
If you want to be able to run higher skulls and not die constantly, you need to earn Reaper XP. People who are interested in reaper aren't running 1-20 because it gets them quest XP. They are doing it because it gets them first time reaper bonuses. Once the first time reaper XP bonuses stop, they reset with a TR and start over. Sure it helps that they can earn R-PL's at the same time (or H-PL's if they had not finished their heroic lives), but that is gravy.
But the idea that they would put out Reaper to create a challenging difficulty and then BUFF every class but warlocks to remove a good portion of that challenge and make it easier doesn't make sense and was just a poorly thought out comment. Clearly that would be counter to the goals of the developer in creating Reaper. The idea that they would put out Reaper and then tone down the easy button tree in the easy button class so that reaper continues to have some challenge, even as players are starting to climb the reaper XP trees does make sense. And is consistent with the stated goals of the developers for Reaper.
Also, Lol. Are you serious? Talking about R1 in a reaper discussion? R1 is training wheels Reaper. You can run R1 with any build and any class. It is pretty much just elite with a 40% free quest XP bump. Mentioning R1 in a discussion about reaper difficulty has as much value as talking to Allen Iverson about practice... Because R1 is practice. Not the game.
https://www.youtube.com/watch?v=eGDBR2L5kzI