What's that meant to mean? Are you saying Lacius is wrong? BTW I made the same mistake too a month or two ago, after playing my first "serious" Pokémon game (ie not quitting after the first gym), after I accidentally stopped butterfree from learning confusion by delaying the evolution to metapod too long, and wanting to find out how to correct my mistake. The folks on the homebrew discord were definitely not as nice as Lacius about it, and I accepted my correction a lot more graciously than OP did.
Chill, it was just an observation. It wasn't meant for anything more than just an observation.