Sweeney allegedly tweeted that he would breach his contract with Apple. Apple reached out and asked if he was being hysterical for public display. He didn’t clarify. At that point, Epic credibly threatened breach of contract.
This is a commercial dispute between multi-billion dollar companies, both of whom charge outrageous platform fees, both of whom seem to enjoy being dramatic, and both of whom are being maximally aggressive. It’s fair to remain emotionally uninvolved.