So if I'm understanding this correctly

Some cancer treatments work great, but they can't breach the outer barriers of tumor clumps. As such, they're only approved for things like blood cancer.

This new treatment acts like a breacher charge, binding to one of the tumour's outer barrier cells and triggering cell death, thus creating an access point.

So this new treatment could allow us to use those other treatments for additional cancer types since now they can get into the tumor clumps?

Pretty cool!