Veronica, Coire is a 100% improvement from the last pakaging they used. Peanuts poured over the plants so you had to unpack the delivery over a garbage can.
When they introduced coire there weren't many cheers. I expect they heard from dozens of gardeners about the wicking of water.
I also remove the plant unless the roots are so invaded in the coir .If that is the case I slit the sides and cut off the bottom.