Dropping i386 DVDs/BDs is making amd64 DVDs/BDs not complete, because offline users cannot use multiarch any more, especially wine - amd64 DVDs/BDs only contains wine64, not wine32. There are also some legacy i386 softwares not upgraded to amd64 in the i386 DVDs/BDs.
Offline users is not so common in common cases in developed contries nowadays, but still common in some developing contries and some uncommon cases in developed contries. Forcing these offline users connecting to the Internet is not friendly, and keeping these DVDs/BDs is not a waste of disk space, but instead keep Debian being offline user-friendly. I think Debian should keep generating a set of non-installable i386 DVDs/BDs in trixie at most for offline users. i386 netinst CDs are purely for installation, and because i386 is not installable now in trixie, and thus can be removed. Trixie is planned to be released in 2025, and its LLTS is upto 2035, so its safe to release i386 DVDs/BDs in trixie. In forky which are planned to be released in 2027, wine should be pure 64-bit without any compatiblity or performance problems, and maybe it would be time to drop i386 totally in Debian.