I have no idea what any of you are talking about... I have had absolutely NO problems whatsoever using standard drywall compound ("mud") on any of my plaster walls over the last 21 years. Some areas over bare plaster, some over old paint... no peeling, no chipping, no flaking, nothing. There is no reason why "mud" wouldn't stick to a clean plaster surface (it even sticks to wood). Areas with gouges down to the base coat I've filled with "mud" and had no issues at all.
The best part about drywall compound is that it's 100% NON-destructive. If you think you ruined something, simple water or steam will remove the mud no matter how much time has passed. However, try making your patch with plaster without enough skill or experience... no amount of sanding, water, or steam will undo that mistake... just get out the hammer & chisel.
And finally, the compound's ability to remain water soluble makes it very easy to work with even after it dries. A damp sponge is a dust free way to re-smooth the surface.
I'm sure you'll be fine.
I can only see it peeling, chipping and flaking if the original surface is peeling, chipping and flaking.