I don't understand why would anybody chase after monsters and lure them to the altar.
It's more than enough to just wait for them to come to you in the altar room.
With some extra food and half a decent altar location (no big deal), precrowning takes less than 10 minutes.
It could be made more difficult instead. It's not grindy at all unless you want 2nd and 3rd precrowns.
Also, If I have a good setup I will typically skip precrowning because of a small chance to get something really useful and indeed proceed with the game as SirTheta suggests.
Precrowning is by no means mandatory.