As mentioned earlier in the thread, the amount of Honor required to level from Honor level 1-50 during Prestige 0 was cut in half in 7.2. Previous to 7.2, the amount of Honor required to level through Honor levels 1-10 was a very small number, so that characters would earn at least 1 Honor Talent in each tier very quickly.
Now that you no longer lose access to Honor Talents when you Prestige, the amount of Honor required for each level AFTER reaching Prestige 1 has been smoothed out. The total amount of Honor required for each Prestige level after Prestige 0 has been slightly reduced, not increased.
We also added the Enlistment Bonus in 7.2, which grants 50% additional Honor to the faction that needs more players in queue for battlegrounds. This is also granted to players who take advantage of our mercenary system and queue as the faction that needs more players. As a reminder, the battleground recruiters that enable mercenary mode are located in the Dalaran Sewers, at The Underbelly Descent.