The chief use of these will not be whole functional organs, but small proxy organs that can be used for testing drugs. In the future, before you go onto a prescription drug, they will create a mini-liver from your own cells, and test the drugs on your mini-liver first to see if your liver can tolerate it.
This is an example of practical and very useful science.
I hope they continue to develop this. Better this proxy liver than having to use live animals, then ‘dispose’ of those animals after the experiments are completed.