Of course they lied.
It's all marketing. They can sell more seeds if they claim that they finish in 60 days. Here's the description from the website.
"The strain finishes super fast in around 60 days from seed."
That's just ridiculous. If that plant is 4 weeks and hasn't started flowering then it's going to be much longer than 60 days from seed. I don't believe anything regarding growing cannabis or cannabis related products. Too many false claims and outright lies. And especially with seeds. There are no standards or regulations. I believe that some of the breeders/banks out there are selling the same strains under multiple names. It's a really shady industry.