Hrm, I’ve got a $6k set of Klips I put together about a year or so ago and they all have grilles.
I’m looking at a ~$20k set of SVS Ultra Evos in the next few months, they’ve all got grilles.
Everything else I’ve explored and considered in the ‘window shopping’ that has led me to the SVS - Paradigm, higher end Klips, PSB, Wharfedale, JBL, all in around that same price point, also all had grilles.
Are you sure the pictures you’re seeing are not just making a point of showing you what is under the grilles, but they do in fact come with grilles?