Partial emptying of the flat valence band is expected to lead to strong electron correlation effects, similar as they are known, for example, for magic angle bilayer graphene. The corrugation of the strain solitons and nodes with an increase of the interlayer distance by up to 0.5 Å is an interesting phenomenon to be investigated for intercalation, e.g., with cations or small molecules, and could be a path towards chemical nanoreactors.