I get it - you really want to believe this one. I'm not sure you're reading what I'm writing, though.
I've given you my position on the giant ufo that a building was built over in a foreign country - it's absolutely worthless information. It's unprovable. There's nothing to go on here. Not any details of what kind of thing the supposed craft is, not where it is, not what company or building its under. It's in a foreign country, so I assume people can now say, "Well, US won't disclose because it's in a foreign country, it's not in their jurisdiction so it doesn't have to be disclosed," so there's an out there about why it'll never be revealed. So, it's just a piece of noise that isn't worth paying any attention to. He's even said, "What if this is true?" Sure, we can play make believe and play what if, but that's not really what I'm interested in.
I don't think Coulthart is lying per se, but I think he knows the information is suspect, and not verifiable and concrete and likely just a story that will end up being just someone's stupid story, hence why he goes into, "What if?" He says, "Let's test these claims. Let's investigate it." Yes, Ross, let's do that. Give me the name of the country and the geolocation and we'll investigate it. Give us the building, the name of the company, give us anything and we can investigate. Until that happens, it is impossible to investigate.
My further opinion on the subject of UAPs is this: making grandiose claims that are worthless is damaging to the whole process. If the goal is to have UAPs destigmatized and enable scientists to study and look for data without judgement, rolling out statements without data, without any way to prove or disprove, that sound ludicrous, is not the way to do it. If you're regurgitating a claim Greer is making, then it's even more suspect. Greer literally charges people tens of thousands to have a camping trip where he pretends to make contact with aliens and shoots off flares.