But them behaving badly (or not; I don’t know enough here to agree or disagree) isn’t the legal issue. Matt is in court for allegedly harming WPE’s business in violation of law and contracts, which has monetary damages WPE can seek to recover.

If you call me names, you’re misbehaving and should be called out for it. If I retaliate by knocking over your fence and spraypainting your cat, you get to sue me even though you were the one who behaved poorly, but legally, to start with.

TL;DR Matt claims WPE acted unethically, which is shameful. WPE claims Matt tried to ruin their business, in ways they say are illegal.