At this time, POIs, as mentioned, are not generally returned in Waze search results. Business and POIs are not really useful in Waze for destinations and Bing and Google are to be relied on for that data. Do not expect Waze landmarks to appear in search results.
Also, parking lot roads should not, in general, be named. However, as you noted, this may be something we can open up for discussion in the editing forum.