Well, this is exactly the thing - GG is still pretty good, just with the current way absolution + enlightenment work out and the current piety gain rates I can't see many scenarios where the absolution/enlightenment is the thing you really ought to go for.
Enlightenment's probably not that much stronger than Chaos Avatar but:
- Costs 20 more piety (and involves you wasting some piety if you want to time it perfectly)
- Hence takes 20 more piety afterwards to convert out
- Prevents you drinking potions afterwards in the super-late-game
- Requires a massive earlier piety investment to leverage
- Requires you to fill up a lot of your inventory
- Comes with less late-game piety generation and, if prepped, less piety generation in general
- all of the above don't apply to Paladins : )
There's a bit more to it, definitely, but I'm just finding Enlightenment a bit of a fool's gold thing on non-Paladins at the moment, much as GG is a perfectly good god otherwise. But then, that means that Enlightenment probably needs to work extra hard to justify not spending that piety on health, cleansings, protections and converting out.