That alone would fix WONAFYT.
Not really. By the time you've explored about a fifth of the level there is no shortage of equal-level monsters to choose from, but your odds of having found WONAFYT are quite low. By its nature, this glyph is only
useful if found in the very early phases of exploration, but your chances of finding it that early are relatively low. Also there's a comment in the other thread about the XP-puzzle being broken, which indicates that this is just a flat nerf and not a redistribution.
On consideration of the the new XP curve, it occurs to me that it may have the opposite of its intended effect. Because it will now be that much harder to reach level 10 (less bonus XP overall) it may now be more important than ever to maximize every bit of bonus XP you can get your hands on. I'll have to wait till I can play a few rounds to see how it turns out, but I think the biggest impact here is that it will be a stealth buff to Tikki Tooki, the Fighter, and WEYTWUT, and a stealth nerf to IMAWAL (whose only real use is multiplying large bonus XP values).