I hope they realized that being FOSS is their moat and it nets them a lot of goodwill (it’s the whole reason I bother with their not-quite-the-best product in the first place). The bold claim „the most trusted password manager“ was kind of justifiable while it was FOSS (if we don’t count keepass), without it not at all.
I’m still not sure how I feel about them now. I can now somewhat trust that the applications will remain free software, but trust in the company has eroded a bit. I still haven’t seen official communication about this.