What has lying got to do with a subjective definition of "lightweight". See discussion on Javascript - https://stackoverflow.com/questions/39797181/why-javascript-...
What does "lightweight" really mean?
The idea that everyone sees "lightweight" and they ONLY think of Chromium size seems an ascription of "lightweight" ONLY to chromium size. I understand that has been a more common approach to chromium based solutions. This is not it here.
I have said in a few of my comments that this is simple referring to "simpler".
See a definition of "lightweight" from wikipedia:
A lightweight programming language is one that is designed to have very small memory footprint, is easy to implement (important when porting a language), and/or has minimalist syntax and features.
https://en.wikipedia.org/wiki/Lightweight_programming_langua...
So if we replace "lightweight programming language" with Chromely, while the small memory footprint, may be arguable false, it is however easier to implememt and minimal features. Note the "and/or" part.