It wasn’t always that way in the LCA (predecessor of the ELCA). I remember as a kid, my pastor dad was pretty verbal about the differences in beliefs regarding the sacrament - “Ist ist ist” meant something to him.
And of course in the LCMS, we get criticism for not being “go along to get along”.
I’m an elder and I know which guy is ordained, and it ain’t me.

From a Lutheran perspective, I would consider “church-hopping” by a Lutheran to be evidence of a lack of good catechesis. Then again, broad Eucharistic hospitality is probably implicit permission to “church-hop”.
Jon