SPF, DKIM, and DMARC are standards that improve email sender authenticity and should be enforced by every email provider. This is a great next step that basically enforces that the source of the message is pre approved by the domain’s owner. There’s no downside and any company seriously impacted isn’t using bare minimum email sending settings.
You still have to be cautious for lookalike domains, but this should help block lazy spoofing attempts.