Because the purpose was to see it in person. If they wanted to see footage of it they could do that from home but there' s definitely something for seeing things with your own eyes.

I'm completely oboard with what they wanted to do since cameras never do a sight justice. They just did it in a really sketchy way. Of course I'm also cool with people doing sketchy things but it sure seems this was being done as a business thing with customers and without proofing it multiple times. And honestly this should've been just an ROV with passenger capsule and probably tethered.