Why does CarGurus Text Search not work at all?

How come Text Search which is a basic feature does not work on
CarGurus? It works perfectly on Autotrader which has some of the same
cars for sale but not all. It seems like a basic feature, Google and such have
been offering text search since like 1996 or something. Over 20 years. But at
CarGurus you put in text, it does narrow you search, but many of the cars it
brings up do NOT have the feature you searched for in the listing or on the
car (checked with BMW VIN checker). A couple will have it but most will not.
Also, the Text Search misses cars that DO have the feature either in the
listing or on the car. So what is it even doing? Just randomly knocking off
half the cars in the first search like eeny meeny miny moe or what?