I'm assuming you meant your criticism for Luther, the author of the article to which you refer, and not Calvin.
I'm also assuming you're reading these links you're trashing.
The pharisee's presumption, very clearly expressed, is that he is not like the reprobates, and for that he is rebuked.
The Pharisee is rebuked because he positions himself the author of his salvation by his good works.
Are you thankful to God you are not a reprobate? Or do you congratulate yourself on that achievement?
Luther. Sorry.
The pharisee does not position himself as author of anything. The only "positioning" mentioned in the Gospel is that he thanks God. This is why the article is based on an assumption that is extrascriptural.
I am thankful to God for many things but I do not know and cannot presume ending up, or not, among the elect when I die. I am a baptised man, I pray for God's mercy, repent for my sins, take Communion, and do what my Church says. Beyond that, I cannot and should not venture. To do otherwise would be to commit the pharisee's error, -- the mortal sin of presumption.