There is an audio watermark in the Hik YouTube video, around the last 10 seconds or so of the video. My guess is that this video was not intended for release... Typically this is put in by the agency designing the video before stock video or audio is purchased/licenses. The watermark could also be from the background music. But it doesn't say much as to the professionalism, as does the use of a computer synthesized voice, which has a hard time saying certain words or emphasizes syllables or words in weird ways.
It is also surprising that AWS would openly let Hik use their services with all of the bans and blacklisting going on with Chinese-state controlled companies.