Honestly they should of never put multi classing into the series. Based on past pnp games like 3.5 dnd and pathfinder it is extremely hard and nigh impossible to make a balance encounters. Exceptionally when people are looking to power game the system to trivialize encounters.
Why are users saying chanters are busted when they intentionally make cheesy builds with 6 chanters in the group? You could make any class build with any 6 classes and call them op.
It seems that people want to make the chanter class into a 3rd tier buffer that you would dip into for hireling and never want to roll for the warden.