I have to agree with the others.
Burning events are useful to quickly level up a class you don't intend to play much after reaching lv150, like a Link Skill mule or a boring class for your Legion.
It's also kinda useful to try out a couple of new classes because there's no penalty in deleting it and creating a new Burned character.
And besides, leveling up is already made as easy as it can get even without a Burning Event. It's just a convenient shortcut for boring or slow to level up classes. Nothing more than that. And if you really like a class you should have no problem leveling it up the normal way.
You shouldn't forget that a significant part of Bera's current population only returned to Maplestory for this transfer event and will quit the game again within 1-2 months when the hype slowly fades away.
I'm actually more afraid they haven't posted a notice yet because they're doing something controversial and don't want the forums to burn down.
At least the banner is up telling us when they expect to be done.