That's really annoying and when I went on a rant weeks ago about MG being liars and me personally not giving more time to any dealer that extends or cancels my delivery time by more than 4 weeks from advised, this is what I was meaning.
People plan their lives around information given and yes I know things could change, especially with lead times but when a company parrots the fact that it has cars on ground available to be delivered within weeks as a sales tactic, to all who care to listen and consistently deliver in months rather than weeks then what conclusion is there to draw apart from they are not truthful and best to steer clear of such types, if you can. Obviously not an option with a lot of people as MG4 is the only option for them but I abhor liars.