The method of keeping control over one’s states (abhyasa) and the method of disengaging with them (vairagya) are the two interrelated and complementary branches on the tree of spiritual practices.
Still I would say that Patanjali misses the third method – the technique of total experience of the states that is described in tantra.
Of course it would not be quite correct to speak about tantra as a unified tradition; nevertheless from practical point there are a number of universals that are appropriate of the systems correlated with tantric ones despite their original religious affiliation, be it the Song of Saraha and techniques practiced by Mahasiddhas or Vijnana Bhairava Tantra.