Sometimes game patches for modern games do rework game balance or playability, rather than just fixing bugs.
But yeah this has nothing to do with the actual content of the levels, it only refers to the engine.
Specifically, 0.1:
* had a fixed screen size
* only let you go forward
* used different mechanics for the fire-throwing upgrade
Nowadays it's been long enough that most levels are written for the later versions. And IIRC recent versions re-added some support for forward-only levels (race against the clock).
To be fair MMORPGs need to do taht to stay relevant.
But to your point yes of course, MMOs that are subscription based need these updates. Regardless, parent was wrong.
nah, I've personally only played it offline
Imagine playing chess but the rules change every couple of months.