The idea that it somehow is more ancient than a ritual with a mileage of 500 years plus seems impossible to me.
That claim (that it is more ancient) is false, I agree. What is true though, is that “tradition” is not simply taking something lock, stock and barrel and preserving it identically forever. It allows one to adapt to the times and include
elements of tradition that leave an indelible imprint of, in this case, Catholicism. Thus some ancient traditions that had been lost at Trent, were allowed back in, such as the troped Kyrie. (I’m still waiting for appropriate plainchant settings to appear for that; though our abbey has one it uses infrequently). The Liturgy of the Hours is another example of this; the basic structure is recognizable; psalms (such as 62 at Lauds or 109 at Vespers) are in their appropriate places; it can be done in Gregorian chant (I do so every day although this week I have a head cold and can’t chant). But it has been made more flexible and adaptable for people with busy lives (diocesan clergy, laity) but can be made longer for contemplatives (two-nocturne Office of Readings/Vigils, three minor hours) so that it can respect psalm 118 v. 164’s claims of praising God 7 times per day.
novelty inspired by different trends
That too is a false claim. As one who has attended many Anglican services (my wife is Anglican), the High Church Anglican liturgy is
much closer to the EF than it is to the OF, save for the language. The Low Church liturgy as done at my wife’s church resembles nothing like a Catholic Mass. As for the Evangelical Protestant services, they are nothing at all like a Catholic Mass.
When I am at an OF Mass, I know I’m at a Catholic Mass. When I attend a Low Church service at my wife’s church, I am totally lost in their praise-band style “liturgy”.
The OF Mass isn’t Protestant, it was made simpler to make it more relevant to the people. IMHO for that purpose it has been a huge success. The questionable music that sometimes accompany it, or the desire of certain clergy to innovate beyond the (very reasonable) choices allowed by the Missal, have nothing to do with the structure of the liturgy. And, its simplicity still does not preclude beautiful, reverent solemn celebrations with full Gregorian chant. If you saw how our abbey celebrates Mass, you would see the OF in its highest possible expression. It is beautiful, and its “noble simplicity” allows it to flow gracefully from one element to the next; the sacred silence inserted in appropriate places, certainly allows the Mass to retain a contemplative element (that I would like to seem more at parish Masses).