It is in fact under LGPL
For the same reason SaaS is popular in general: yes, you could get a VPS, install all the needed software on it, keep it up to date, oor you could pay a company to do all that for you.
Nowdays LLM can be ran on consumer hardware, so the "dead battery" analogy fall short here too.
"TraDItIONal PaRtIEs ARe FaIlINg!!!!111!1!1"