Yup, definitely a lot more like the real thing. You can shop for seats here. This particular one is a 280 mm model.
The difference with an ergometer is that the latter measures your force (also in nice graphs) in a rowing-like motion, while this machine is purely for training in a more realistic manner.
Since you don’t simulate the oar twist for putting it in and taking it out of the water it falls short of being a full simulation, but you’re actually pulling on more or less lifelike oars instead of a little static stick.
Also the way the seats work on better ergometers can be more like being on a real skiff balance-wise.
I have seen some people trying to simulate something when returning to the starting position: They make awkward arm movements navigating around their knees…