There is also some much deeper problem - that is the new rites in themselfes (or precisely: the new rites in combination with the Intention resp. the determination of the ministers using them):
All the new rites, espec. the new rite of episcopal consecration but also the others, are at least (more or less) ambiguous. They do not any longer - as the old rites did - univocally express the spirit and intention of the Church but can be understood in a orthodox, traditional way but also - and very easily (and willfully so desigened!) - in a modernist resp. heretical way.
So therefore the validity of the sacramental actions, by using the new rites, is totally depending on the intention or better: determination of the minister of the sacramental act:
If he understands the words as expressing resp. intends the words to express the Catholic meaning, then the sacrament ist validly spent -- but if he understands - wants to be understood - the words in a heretical way, the sacramental act ist INVALID!!
Therefore Archbishop Lefebvre said in his famous sermon for the Episcopal Consecrations of his 4 Bishops on June, 30th 1988, that ALL SACRAMENTS spent by the MODERNISTS are DOUBTFULL because of their - doubtfull - INTENTIONS!!
(So not the rites alone and also not the intention alone ist the crucial point, but the new - ambiguous, modernist - rites in combination with the intention or better: determination of the ministers!)