Also remember your pond is outdoors - you will naturally get silt and dust that will fall into the pond when it rains or the wind blows, not to mention dirt from your plants, organic material breaking down, etc. Dirt in a pond is pretty much a foregone conclusion. It won't affect water clarity because it will settle. When you start planting in your pond, your plants may even gather some dirt around their roots - it's pretty interesting to see how that happens. You can plant a barefoot plant one year and by the time you go to thin it out the next year, it looks like you planted it in dirt. In any case, your pond will never be "clean" so don't worry too much about it.
Here's what SHOULD happen since this pond is a pro build - at least this is what I have seen every single pro do as they reach the finish line. They will complete the interior pond rock work and then will start to fill the pond, rinsing rocks off as they do. Then they will pump that dirty water out (with a pump that can handle solids) and continue filling and rinsing until the water reaches an acceptable level of "clean". Your pond will still be cloudy for a few days, but again - that all settles. If they don't do this or you watch and feel they are stopping too soon, I'd talk to them about it. But I'm assuming they've done lots of ponds - they know how far they need to take "clean".
And yes - forget everything you know about reef tanks and aquariums. Ponds and tanks have two things in common - fish and water. It ends there!
