From a news article:
"-Ecumenism. In their eagerness to spread the Good News and draw people in, the fundamentalists say, the Promise Keepers get doctrinally fuzzy and syncretistic. The movement's rallies are indeed open to all, and one of its famed Seven Promises calls on men to reach beyond "denominational barriers" on behalf of biblical unity. Some in the movement have downplayed denominational differences as matters of tradition and style. A large PK pastors' gathering in 1996 offered Holy Communion to all as a demonstration of unity.
This ecumenism is abhorrent to most fundamentalists. They have always taken strong issue with Catholic dogma, Mormon prophecy and Jehovah's Witnesses theology and want no part of fellowship, however brief, with such groups."
http://www.texnews.com/1998/religion/pk0725.html
Another critique here: http://www.wayoflife.org/special/spec0010.htm
..."They are also Armenian in their view of salvation although they also try to use language to appeal to Calvinists."...
The"Lutheran critique & News article" is written by someone not at all Familiar w/ Promise Keepers, it is a ignorant view.
PK is an Evangelical Christian organization. PK would have Huge problems with the Mormon Church and Jehovah's Witnesses. Both are Cults, neither recognize Core Christian Doctrine. No one excludes members of either, all are welcome to Christ. It is THEIR "made up as you go" theology thats not welcome. As far as the Catholic Church goes, their are some issues that are not completely agreeable, BUT these issues are to be debated over, NOT to divide over.
Peace