If they make it clear from their teachings something they don't approve, or how to properly interpret certain phrases, then we should argue based on those merits.
Will this do?
From MYSTICI CORPORIS CHRISTI - ENCYCLICAL OF POPE PIUS XII
Okay, let's take a look at this encyclical:
It was she, the second Eve,
I don't disagree. She is the second Eve indeed.
who, free from all sin, original or personal,
I would disagree with this one.
and always more intimately united with her Son,
I suppose there's a special relationship between Christ and her, since she is His chosen mother.
offered Him on Golgotha to the Eternal Father for all the children of Adam, sin-stained by his unhappy fall, and her mother's rights and her mother's love were included in the holocaust.
I have to say this needs more clarification. She was the altar of our God incarnate, Who came and offered Himself on Golgotha for the salvation of mankind. If that's all they mean by this, that the "offering" was simply because He took flesh from her, and she took care of Him as a mother, then no need to discuss further.
As for the mother's rights and love included in suffering, that I admit needs more clarification. I will say that she did suffer for seeing Christ suffer, as a "sword pierced her own soul." She rejoiced and felt sad at the same time looking upon her Son and her God. As long as this is a sign of veneration to her, not a sign of necessity for our salvation, as I've argued elsewhere before.
Thus she who, according to the flesh, was the mother of our Head, through the added title of pain and glory became, according to the Spirit, the mother of all His members.
She is the Mother of God, and we also call her the mother of the faithful. She became our mother in a venerating sense. Because Christ honored her, we honor her too.
She it was through her powerful prayers obtained that the spirit of our Divine Redeemer, already given on the Cross, should be bestowed, accompanied by miraculous gifts, on the newly founded Church at Pentecost;
This one I'm not sure about. She is a powerful intercessor, but that the Holy Spirit be bestowed on the Church was already a divine plan, I think. She may have prayed for salvation, but if it was specifically her idea that the Holy Spirit is to come, then I would certainly disagree, unless she like the rest of the disciples with her were fasting and praying after Christ's ascension for the coming the Holy Spirit that Christ already promised them.
and finally, bearing with courage and confidence the tremendous burden of her sorrows and desolation,
I think she was indeed courageous and confident, although suffering to see Christ suffer.
she, truly the Queen of Martyrs, more than all the faithful "filled up those things that are wanting of the sufferings of Christ...for His Body, which is the Church"
Perhaps all the martyrs consider her their queen. I don't know what the title exactly means. But the verse where she was the best one to "fill up those things wanting of the sufferings of Christ," we do say she is the most perfect, glorified more than the Cherubim, honored more than the Seraphim. Doesn't sound far off.
So so far, 2 statements in there I agree that make me cringe and some that might need clarification, but also some of the statements you bolded I didn't think were that too crazy, unless I'm reading it incorrectly.
So in the end, no, this clarification is not enough. There needs to be a more straightforward clarification.