I hadn't been to a Roman rite Mass in a while (two years or so), until recently. Went to a parish that was fairly close, which I knew was a bit more traditional and had a Communion rail. It was so much better, I think, than the usual lines with ECMs: reverent, efficient, natural, quiet, and prayerful. The claim that it is disruptive seems not only false but an act of overt gaslighting.
Cardinal McElroy has banned the installation of new Altar rails and discourages temporary kneelers, citing "a disruption of the flow of the Communion line". As you can see here, there is no disruption. Just another garbage excuse to attack the Latin Mass.