Water on construction site. Damage to bricks?
If you mean mortar or cement-based parging then yes this is a somewhat acceptable situation for that. If you actually mean plastering then definitely no way &amp; no plastering should ever be done until the interior is weather-tight.

Either way you have a slightly defective slab, which is normal, ideally no water should be "puddling" anywhere. I side with you though, this should be vacuumed up or swept away for the brick to be dry before application of anything.

If you're allowed on the site, then take care of it yourself with a push or pivot broom &amp; keep an eye on it &amp; the rest of what the crews are doing.