Both Troopy and Woodmaster have a point. If this is true and if...

Both Troopy and Woodmaster have a point. If this is true and if these walls are infact unsupported, then it would be a pose a huge risk to people. It's ironic that FBR has developed a robot that can work outside in high wind, but at the same time these walls can't be built outdoor because of wind.

https://www.abc.net.au/news/2016-02-04/melbourne-sign-company-fined-$250,000-over-fatal-wall-collapse/7139404
Melbourne sign company fined $250,000 over fatal wall collapse in Swanston Street
"a high wind day was potentially placed at an increased risk of death or serious injury"

https://www.theage.com.au/national/victoria/coroner-rules-over-fatal-wall-collapse-on-swanston-street-20180607-p4zk3o.html
Grocon responsible for safety, coroner rules over fatal wall collapse
"when a strong gust of wind brought the wall down."