Rather, "progressive sanctification" is a personal description of their perceptions of them self, and others. Someone seems "more holy", so they are being "progressively made more holy".
And these are they which are sown on good ground; such as hear the word, and receive it, and bring forth fruit, some thirtyfold, some sixty, and some an hundred. Mark 4:20 If God is the one that grants the growth and determines how much fruit is produced, Then there is no way that this should result in self righteousness, when fruit is being produced, Only rejoicing for all who are part of the body of Christ. My Hope and prayer is that you may become fruitful in your ministry than I have been and i will share in your joy then.