You're closer than you think. Big companies and institutions just change the definition of words they don't like. In this case, they could argue that a domain's lifecycle is registration, renewal (optional), deletion. Deletion is part of the expected lifecycle, so this doesn't change it.
The ambiguity is a feature so they can do whatever they want. We all know it's bullshit, but it gives the parties involved the ability to disenfranchise one group to benefit another while claiming they're following the rules.
Here's an example of someone genuinely making that argument in another hacker news post. I'm having a laugh about how spot on I was.
> Changes to the life-cycles of domains is a question meant to ask if this seeks to modify the life cycle policy, which is a separate type of change from termination of the service as a whole. I.e. this does not seek to change the life cycle policy, it seeks to terminate the service offering completely - making the life cycle policy irrelevant.