I know too much about the dogma of WELS and its counterparts - ELS, CLC (sic), LCMS. They glorify themselves to such an extent that any other place must imagine Heaven to be a crushing disappointment.
The "strict" seminaries and synods end up just like ELCA, gathering around such beacons of nonsense as
- Fuller Seminary,
- the Hour of Power (oops gone, now the Assumption of Mary),
- the Purpose Driven Church,
- and much more.