You're not mistaken with the other stuff. For mobs and coins, I noticed the rates aren't exactly what they were prior to the expansion. PV 135 gives 12+ million xp with 2x, or 35k xp at 148(my current char), the boss gives about 210k+ xp. Coins are like 40-50k.
The quest xp for divine contracts/corona stargazer/almost all quests in the quest log are the retail value. I can't test for those pill things you get with enough prestige yet where 20 of them = 20mil xp(where it would be 2mil at retail).
Most people prefer speeding through the levels with LS/SLS, but I prefer to go a little slower, but not retail-slower like what it feels like now.
Drops though seem to be ok(with 2x). Going to be interesting when its turned off.
If this is the new thing, do tell us, if not, please look into it.