If anyone is sinning against the Holy Spirit, it is those who deny the sacramental love in both second marriages (so long as the first marriage was not ended specifically to contract the second) and in gay married couples, who I am sure stay married through the Spirit’s gentle aid. 

As for pharisees, some of them were those who blasphemed against-the Spirit by not recognizing her work in Christ when his charismatic love was clearly evident, as it is in Francis. Would it have been more convenient if A.L. had spelled out doctrinal changes or more reasonable interpretations of both the teaching on divorce (see above) and the teaching of Paul in Corinthians on Communion (that it spoke about recieving what is not believed in, not a teaching on mortal sin that would have been 1000 years early)? Absolutely.