Enzall is not recommeneded for wool carpets.
just like all I know, powerburst, shockwave etc
but if you have a trashed, heavy stained carpet then would I care ? No, clean carpet is more important then a bit of not visible damage to the wool that average customer does not care.
most of wool safe dedicated chems are 7ph, not much cleaning power in them, good for regular cleaning not those neglected.