Frozen tardigrade becomes first 'quantum entangled' animal in history

Recent and related:

Entanglement between superconducting qubits and a tardigrade - https://news.ycombinator.com/item?id=29580686 - Dec 2021 (111 comments)

based on my calculations the tardigrade would weight about 1e-8 kg or 1e-5 grams. Carbon is 12 grams per mole which is 1e23, or 1e21 atoms per gram. So we would get 1e16 atoms in a tardigrade (give or take a few orders of magnitude).

Wouldn't quantum entanglement be quite impossible since it's a macroscopic object.

This sounds just like the tardigrade surfing the mycelium network in Star Trek Discovery.