I don't think there is anything sinister behind this. The devotion to Our Lady of All Nations stemmed from the alleged seer Ida Peerdeman, who claimed to have received 56 visions of the 'Lady' from 1945 to 1959. Both in pre and post conciliar times, the devotion was never approved by the local Ordinaries or the Holy See, so this is not some kind of modernist post-conciliar plot. On 7 May 1956, Bishop Johannes Huibers, following a careful examination of the case, concerning the supposed apparitions and revelations of 'Our Lady of All Nations', declared that he 'found no evidence of the supernatural nature of the apparitions'. The Vatican's Congregation for the Doctrine of the Faith affirmed his position on 13 March 1957 and again on 24 May 1972 and 25 May 1974. It was only in the 1990's under Bishop Hendrick Bomers that some kind of quasi-approval of the devotion was given, but even he didn't go as far as saying that the events were of supernatural origin. Now the CDF has simply restored what has always been the position and there is no evidence of coercion of Bishop Hendriks. Local Bishop and Vatican Condemn Apparitions Of “Our Lady Of All Nations” One of the major problems is the apostolate of Dr Mark Miravalle, Vox Populi Mariae Mediatrici (VPMM) which campaigns for the Fifth Marian Dogma of solemnly defining Our Lady as Co-Redemptrix, Mediatrix and Advocate. A praiseworthy cause indeed. But unfortunately, Miravalle mixes up the works of Ida Peerdeman in with it, which puts the whole thing at risk and obviously makes the Vatican suspicious (he's also a massive promoter of Medjugorje). The work of VPMM should be done on painstaking theological research, not on the ramblings of a condemned seer. I have read some of Peerdeman's books and it astonishes me that any Catholic could take them seriously. I have no doubt that the Fifth Marian Dogma will be proclaimed one day, but it won't have anything to do with alleged apparitions.
Again, with Lipa, Philippines, the condemnations came well before Vatican II so cannot be presented as some kind of modernist Vatican plot. Initially declared as "non-supernatural" after an investigation by six Filipino bishops headed by Cardinal Rufino Santos on 11 April 1951, the case was reopened in 1991 by the local bishop and eventually declared by the then local Ordinary to be supernatural in character and worthy of belief. However, in May 2016, the Sacred Congregation of the Doctrine of the Faith under Cardinal Gerhard Muller overruled this decision. The local Ordinary until 2017, Archbishop Ramon Arguelles, himself disclosed the ruling by the CDF in an archdiocesan communiqué on May 31. In its decree, the Congregation stated that Pope Pius XII (hardly a modernist) had made a definitive confirmation in 1951 against the supposed apparitions in Lipa, declaring that they "were not of supernatural origin," which the local authority had no authority to overrule.