Man, this is some low-quality bait, but screw it.
Sure, Disney, a multi-billion dollar company, would use some shitty script kiddy comment bot from over a year ago to spam YouTube’s comments with…something.
Also, now I could be wrong here, but a commenter can’t block other comments from public view. Either the commenter closed replies for their comment (and you wouldn’t be able to reply to them), or you said something the uploader blacklisted for the comments. (Yes, YouTube uploaders can add certain words to a blacklist that automatically hides comments that contain said words).
From the way I’d see it, it’s like if you go to Star Tours or whatever at Disney World, start screaming like an autist at every living being that approaches you, don’t be surprised when security kicks you out. This isn’t some kind of grand conspiracy.