I'm asking because: Why do we have all those caster level increases then? They feel pretty much useless to me
They won't help the destiny's abilities, the spells we have are all capped at 20 (any news on this btw? can you cap them at 30 for the expansion?) without any significant MCL increase and they are only usefull for buffs like haste and rage but this is something really not-necessary-but-still-bit-nice.