1. The fact that they were the same periti rather proves my point. SC was full of contradictions, e.g. demanding the retention of Latin in the liturgy yet at the same time permitting its replacement with the vernacular.
2. To say that the Council Fathers were unaware of what they were voting for most certainly is a criticism of the Council.
3. The Tridentine Liturgy is far older than Trent, everyone knows that.
It is rather strange that of all the extant rites in the Catholic Church the only ones singled out for 'reform' were those in use in the Latin Church. Well perhaps not so strange as Msgr Bugnini freely admitted that anything which Protestants objected to was stripped from the Mass.