Some time ago, following the 1962 rubrics, I discovered that I had three consecutive days saying the Mass of the previous Sunday. I must say that I found this most refreshing. The simple luxury of putting on green vestments and using the marvellous ancient collects and psalmody which come to us from the fifth century and breath the genius of the old Roman Rite; its terse elegance; its austerity; its capacity for patterning an economic number of words with as much expressive skill as a Horace ...
Moreover, with a less cluttered calendar, one got the Sunday Collect over and over again in the Office ... one lived with it ... and I remembered the admirable old Anglican Patrimonial tradition of learning (Cranmer's elegant translations of) these dear early Roman collects week by week; of thus making them part of ones being. Instead of enduring an endless succession of Confessor Bishops who, bully for them, founded religious orders, and whose labours were rewarded with flat, predictable, formulaic collects.
I have no doubt that the EF Calendar is overloaded. Historically, Calendars do get overloaded and the poor things need, every now and again, to be pruned. S Pius V certainly operated on that principle! Even S Anne was mercilessly deleted! But his successors recommenced the overloading of his calendar, and I get tired of reading the (truncated form of) the Parable of the talents at Mass; in the Divine Office, there is the endless saying of the hymn Iste confessor, bringing with it the daily anguish of remembering whether mutatur tertius versus.
In the Novus Ordo, lots of memoriae are optional. We could do with that principle in the Old Rite.
And in the Liturgy of the Hours, on most ordinary memoriae, one has the liberty of saying (for example) the ferial hymns. So one has the advantage, among other things, of using that wonderful old cycle of the Days of Creation at Vespers. That rubrical adjustment would be an enrichment of the old Breviary. (Yes, I know, 99% of clergy who say the LH don't get those hymns anyway because the English translations of LH don't include many translations of Latin hymns. How crafty the Enemy is.)
In theory, I would not object to using some Weekday Eucharistic Lectionary (medieval dialects of the Roman Rite sometimes offered variant Epistles and Gospels midweek). In practice, I would most strongly object, because the most comfortable thing about the Old Rite, especially for the aged, is that we don't have to keep juggling with a multiplicity of complicated and confusing books! Vera simplicitas et simplex Veritas!