This is something you'd learn in your first year at law school. If, as Trump's complaint alleges, Dominion did destroy evidence then the evidence is immediately assumed to support the opposing party's allegations.
Biden's defense would now have to prove there was no fraud as if Trump's team had certain evidence of there being such.
This is literally the reason Rudy skirted around specifically alleging fraud in his court cases. Law is complicated, LARPing as a lawyer just makes you sound like a retard to everyone.
100% behind us supporting rallys though, that's something anyone can do