Someone with knowledge actually analysed a few models and ended up making this statement too. With Japans stricter copyright laws this might become a problem for Pocketpair
Regardless, considering the Companies history with Craftopia and a few other games, we shouldn't get our hopes up anyways. This company has a habit of plagiarising relatively popular games (BOTW, Hollow Knight) then never delivering a fully fleshed out product.
Did they say how they analyzed the models? Because looking at the silhouette and other similarities isn't enough to prove plagiarism when it comes to 3d models.
What you have to do is open up both the original and the suspected copy models and select a couple of similar vertices (the points that give the model geometry) and compare the position down to the decimal place. If they are even a little off, then it isn't a copy.
The "analysis" here was a guy assuming a video he watched was truthful. Spoiler, it wasn’t. The original video comparing assets was confirmed to have faked its analysis.