You need to slowly work the sealant around the sidewall of the tyre. So spinning the wheel won’t help.
They are tubeless ready which means the bead is better designed to seal on the rim. If you want a tyre to go up and stay up without much sealant then get a UST (heavier) tyre.
I put TLR NN’s on Pancenti rims a few weeks ago, shook the sealant around the side walls and they’ve stayed at the same pressure ever since. There were a couple of pin holes on the sidewalls. If you read the instructions Schwalbe do actually explain this.