Archaeologists generally tend to be a little better at their jobs than that – unless there was some sort of contextual evidence to at least suggest this connection, beyond an erroneous and vastly overstated ‘stars = Alcor’ assumption, they’re not likely to think this. There would have to be things like written accounts from a known Alcor cultist that mention, say in their diary, their Super-Stars shoes getting worn out and needing to be replaced in context of a big Alcor-related event coming up, and there would have to be lots of these things from lots of these cultists in order to overcome sheer coincidence, i.e. this particular cultist just had that particular taste in shoes, not because of some kind of social norm or tradition but for personal, individual reasons. 

Basically, if you can somehow come up with a way for a big enough body of evidence to support this idea to actually exist in record, then trained archaeologists may theorize that all of these past cultists made that connection themselves and turned it into tradition.

Now, the general public via things like urban legends, on the other hand…