One key point that you are not addressing:
The license expiration didn’t just stop access to updates or the creation of new spreads.
It also disabled previously created and published spreads — that were already live on my website.
Nowhere do you clearly state that functionality for existing spreads would be deactivated. That’s not about add-ons — that’s about removing visible content from my running website.
This effectively means that a functioning site broke unexpectedly after licence expiration, with no clear or fair warning. That’s not “lifetime access”, nor is it proper licensing transparency