Sorry but i don't realy see how it's hard to go from lvl 1 to lvl 30, it's very fast, and you can be lvl 20-25 in few hour (lvl 20 is 650k xp!)
Do you remember pre-patch? it was far harder to lvl your char (but easier to retire).
How can you say that it's hard post-patch to level a char, the gap between new player and old one was way way bigger pre-patch.
Lvl a char from 30 to 31, it's harder, off course it's intended, it's only for grinders no-lifers, you don't need this if you want to have fun playing the game, you are not forced to retire and have heirloom to enjoy this mod, or even to pwn other high gen players.
tbh, i don't care of retire, i don't care of heirloom, if i can have one it's fine (i have 3, and don't use them everytime) but i don't need heirloom or high gen.