I agree, confusing and it seems like they are using the coined word "cell" to describe "container", but they really should say that instead of making up new words.
Making up new words is how you get to take ownership of existing concepts. This gets you promoted.
if a "cell" is different from a "container", from the articles context, please explain how... This could be some special FPGA board too referred to again as a "cell", but they are extremely vauge about the definition.
If anything, it’s similar to a pod, not a container.