Hard to tell. The cynical response is that the novelty is that it's coming from Stanford. The perhaps more correct response is that the novelty is the mechanism of triggering the apoptosis and the specificity.

Here's a paper from 2018 that discusses the prospect of using apoptosis for cancer treatment. They even talk about BCL-2.

https://pmc.ncbi.nlm.nih.gov/articles/PMC5855670/