Appealing to Paul, we Calflicks are pretty clear that partaking of the Sacrament unworthily is VERY bad mojo, eating and drinking judgement, rather than grace. Not only is it not recommended, it's recommended against.
If, we say, you are aware of being in a state of mortal sin, you ought not to partake until you have been shriven.
You are right. So, then, the communion wafer itself, no matter whether it is administered in Catholic, Episcopalian, Lutheran, any church or denomination is not the ticket to eternal life, is it?