It's possible that some percentage of people would change their vote in retaliation to being fired just before an election, and probably from "status quo" to "burn it all down with fire".
Even if it statistically would have no effect, it avoids being blamed for it.
I'm still having trouble following your train of thought. I work at Meta and vote for red team, after being laid off I vote for blue team because... that'll show 'em?
Assuming most of these people are in the bay and even if everyone was in one county, none of the elections would have even flipped (except for districts which are already tiny such that 13k would dwarf the entire voting population). Trying to flip any of the bay is like pissing into the wind.
Even if it statistically would have no effect, it avoids being blamed for it.