Good thing. NetBSD has fully reproductible build since 2017. https://blog.netbsd.org/tnf/entry/netbsd_fully_reproducible_...
Debian, like any other legacy distro, mush became declarative, because the '80s model of manual deploy and the absurd pain of D/I and Preseed must end.
zero improvement on end-user experience. does not solve supply chain issues, debian package will reproducabily contain the malware from upstream.
A great milestone, congrats Debian on taking a stance and holding high standards for yourself, especially in the current era.