They're printing 12 μm features (fig 4h). For high speed mass production of more or less arbitrary geometry with no need to retool it's seriously impressive.

Going off some Photoshop dimensionating with the scale bar, that Benchy is about w 6mm x h 5mm[0] which, if I'm reading [1] correctly, is just about 100x smaller than the canonical Benchy. Impressive that you can recognise it at all, I'd say.

[0] Strictly more like 5.5mm x 4.5mm but you get the idea.

[1] https://www.3dbenchy.com/dimensions/