Zardnaar
Legend
Pretty sure WotC never said there won't ever be another edition change.
Just that one of the main people working on the game thought it'd be a good idea to have more stable editions than there had been in the past, in a 2012 interview.
Which is something they're continuing with. This "5.2" edition or whatever isn't being sold as a huge change that's going to fix what's wrong with all games, but as a tweaking and a refinement mostly on the places that weren't working super great 10 years go. That's the presentation, and that seems to be the truth (based on remarks about character and adventure compatibility and even monster design).
So, I don't think there's a lie there. Heck, even if they had planned to release a full 6e this year, I don't think there'd be a lie. That one guy still could've thought it was a good idea at the time.
People hear what they want to hear.
Eg to play the type of character you want if you're a fan of OSR/3E/4E. People took that to mean they would copy those editions.
What they were saying is here's a variety of complexity archetypes you can layer more complexity on via feats.
They never claimed they were copying an edition.