Lime plaster processing marks in Q2 agreement

Our interior plasterer has completed the lime plaster (Weber174). On almost all walls, the trowel marks in the form of grooves and scratches are clearly visible. We were aware that the lime plaster does not have a smooth surface, but we assumed that at least no tool marks would be visible. Q2 was agreed upon with the contractor, and we always pointed out that we wanted to paint the plaster directly. The contractor also repeatedly assured us that the painter would fill the grooves using a lambswool roller. However, the painter has now said that this will not work with the planned silicate paint.

The plaster is by now already quite dry, and we are now looking for tips on how to further treat the walls to get rid of these marks.

Unfortunately, the only help is (multiple) filling and sanding.

Damn. Does the typical surface texture of the lime plaster remain? Or can you then see differences between untreated and treated parts? Would lime smoothness maybe be an alternative, or would that have other disadvantages?

Well, you would have to putty the entire surface and then everything is smooth. I am not familiar with lime plaster. An alternative might be to use lime paint right away and then apply it with a really long-pile roller and a thick layer of paint. But then it almost becomes like a textured roller coating. That would also be an alternative that might require fewer steps.

Thank you, I will discuss that with the painter.

What is a typical surface for you with lime plaster? I think the surfaces are rubbed? It can also be smoothed, scratched, or creatively worked.
The Weber plaster is a base coat and can be overcoated with various mineral plasters. But it can also be used in two layers, with the second layer applied thinly the next day. Real major work marks should then not be visible.
Q2 is, of course, also a rather simple normal surface, so you shouldn't have high expectations there. In that case, you should have agreed on Q3. What kind of mineral paint is supposed to be applied there? Dispersion silicate or pure silicate? You can also apply something with dispersion silicate, but that should not be the goal of the paint. Lime paint is not much thicker either, otherwise you will soon need to slurry. For example, Keim Intact as a primer or admixture.
I think this is a communication problem between the plasterer and the customer. Achieving a nice wall surface with Q2 is optimistic. If it should be finer, you might have needed to plaster in two layers. Then, for example, a fine lime plaster or a smoothing coat.
You should also have included a photo.