Oh I've been to Tridentine masses. I'm a church organist. I literally "play" a part in liturgies.
I don't really see that much of a difference to be honest. A lot of people make a big fuss out of the details but the shape of the liturgy as a whole is practically the same.
It's only stylish because of the imagined qualities of prestige vested in a language you're not fluent in. It's the same as how you get English-speaking people realising how cringe-inducing anime dialogue really is when they hear it in English instead of Japanese, and then championing "the only REAL way of consuming anime is in Japanese dub!", not realising the Japanese used in that is also extremely cringey.
People finding the mass somehow less holy and sacramental when celebrated in their native tongue need to reflect on their own perspectives on what makes something holy.
A bit of correction: the version you'll most likely see being used across the Church of England nowadays is NRSV. It's the scholarly translation.
NIV is the preferred translation for the low-church side, the evangelicals, so definitely won't be used by the bells-and-smells high church crowd. KJV is preferred by a niche who also prefers the Book of Common Prayer liturgy over Common Worship. Usually this is either an older population, a certain ethnic subgroup with calcified traditions, or old-school low church folks (so not modern evangelicals) who prefer the old ways and even the Thirty-Nine Articles.
The Death of the Author came about in 1967, even New Criticism, which foreshadowed Death, came about only at the earliest the 1930s-40s, after IA Richards published his Practical Criticism.
Shelley wrote in the Romantic period, when the artist's personal "genius" was paramount as a conduit to the "sublime". Saying that he somehow whipped up a criticism of "author as the arbiter of meaning" in what is practically a product of a friendly poetry contest is plainly absurd.
Strangely you also attributed this anachronistic reading to Shelley, making it somehow the author's intent to be counter-author-intent. Just... why?
I don't really see that much of a difference to be honest. A lot of people make a big fuss out of the details but the shape of the liturgy as a whole is practically the same.