A couple of things for these arguments before wincons,
Haki vs TSO
Buso is not negging TSO, the only real difference between Haki and the spiritual Aspect of Chakra that has been presented is that Haki is more spiritual in nature and that Chakra is not life force. For one, how spiritual Haki is compared to chakra doesnt matter for whether of not the TSO can erase Haki because all chakra based abilities are erased indiscriminately, TSO dont have some limitation where if a power is more attuned to your life force they can no longer negate the ability, the only exceptions are power drawn from the environment(Natural Energy) and Six Path Chakra. If Haki doesn't fulfill those requirements, there is no reason for them to be treated as some kind of exception. How SBA equalizes power systems supports this anyways.
Haki and Chakra are both Life force-based energies that tie to the soul, no semantical debate is going to change anything rn especially since that is how they are both accepted on site. If you don't like it on either side make a CRT to change things (although one is already in the works on the Naruto side so that's probably not needed.). but until then TSO will absolutely work on Haki.