Yes. Also, the priest's teachings must also be compared to the interpretations of the Magisterium (i.e., not just to Joe Catholic's private interpretation of Scripture and Tradition). If a priest is out of Communion with the Magisterium, he is not to be followed.
So I apparently agree with you that the author misses the mark on describing the missing Protestant infallibility, and I am disappointed in the article for that reason. I would instead say it rather depends on the Protestant. Some may in fact or in practice place it in their pastor, just as some Catholics may in fact or in practice follow their own priest away from the authentic teachings of the Catholic Church. But most Protestants would hold infallible the human authors of Scripture when they were writing Scripture (Catholics would agree), and also the 16th-18th Century compilers of the Protestant canon (the Protestant Bible's table of contents). Some Protestants also accept some of the early Church Councils, e.g. the Nicene Creed, whereas other churches will adopt their own creeds, e.g. the Confession of Augsburg. Most Protestants also hold implicitly to certain "dogmas" (e.g. sola scriptura) which are extra-scriptural.
>>I would instead say it rather depends on the Protestant.<<
Amen!!!!!!