Today WhatsApp describes itself as serving on the order of three billion users worldwide, and end-to-end encryption is on by default for personal messaging. They haven’t once been ambiguous about what they claim to offer. That means that if the allegations in the lawsuit proved to be true, this would be one of the largest corporate coverups since Dupont.
Publicly WhatsApp has always maintained they do E2EE, the lawsuit says otherwise, that would be a major scandal. But also makes the claim hard to swallow