Sony will happily sell you ODA at 6tb per cartridge for $$$$.
I think the video production folk use LTO and HDDs for long term storage.
Everyone who still cares would like multi-terabyte optical - but it’s not a big enough market anymore outside of long term corporate archiving (the ODA use case), and Sony probably doesn’t want to canabalize that market.
Downloading 100gb games over the internet became a thing, and h264 and h265 were efficient enough to prevent consumer video needing anything much larger than blu-ray.
Sony ODA is a thing, and uses 11 600gb discs in a compact cartridge to give around 6tb per cartridge.
Sic semper tyrannis, and their bootlicking lapdogs too.