EDIT: there are times you want to nose down into a landing and thats typically in short field landings, but you are probably never doing that in gulfstream
Pure conjecture here since I've never flown one, but decreasing thrust might actually cause a nose up movement. That and my experience with pusher prop planes which very much have this issue.
Thinking about the 737-max which had the opposite problem of engines low and forward, where increasing thrust caused excess pitchup.
That said this reads like a bad idea overall.
Agree that it's a bad idea to get creative with flying airplanes.
That said, this maneuver might tend to reduce landing "float" which introduces its own set of risks.
But still not a good idea.
This reads a lot like the fabled "three-point landing" that used to be a staple of early tricycle-gear fiction. Which did exist.
Maybe this works for Eric here, the youngest G-280 pilot in the world according to his bio. I would rather my pilot just follow the checklist set out by experienced company test pilots working with multimillion dollar budgets alongside the engineers who designed the systems.
Anything involving "unofficial", please ignore. It might as well say "One crazy trick to land a Gulfstreamm G280". I am sure the test pilots just missed it while developing the flight procedures.
https://www.faa.gov/regulations_policies/handbooks_manuals/a... (PDF, see page 13-6)