It had only been posted two hours when you posted.

I work.
Is it true that the Lutheran Confessions understand that the institution of the papacy is Antichrist? Yes. That’s what the LCMS page is simply restating. Randy, I don’t think it was your intent, but I think you emphasized a section that is meant to serve as a
simple conclusion about how the LCMS holds to the Confessions in relation to the topic of Antichrist; read the 1,029 preceding characters and you’ll see that it is not so simple as ‘the Pope is the Antichrist!’
Now let’s take a look at
why Lutherans consider the institution of the papacy to be anti-Christ.
The Reformers gave three reasons why the term applied to the Papacy (below). At least one of these (#2), does not apply in our day, since the Pope is no longer a kingmaker (one less issue keeping us from restored unity!

):
*]The Roman Pontiff claims for himself [in the first place] that by divine right he is [supreme] above all bishops and pastors [in all Christendom].
*]Secondly, he adds also that by divine right he has both swords, i.e., the authority also of bestowing kingdoms [enthroning and deposing kings, regulating secular dominions etc.].
*]And thirdly, he says that to believe this is necessary for salvation. And for these reasons the Roman bishop calls himself [and boasts that he is] the vicar of Christ on earth.
From the Frequently Asked Questions section of the same website: