I strongly disagree.LoopStationZebra wrote:...
That moment is treated almost as an afterthought. ...
The space jockey set was built larger than life by Giger personally and must have cost a lot to make. Then they made 3 small space suits and put three kids in them to make the space jockey seem even bigger.
So you will have to grant that Ridley must have thought this scene important.
In a movie there's no sense of a time continuum when the scenes break, so would you have felt better if someone said - "Well now that we've spent 5 hours looking over this petrified alien, let's go down that well with the laser shield - at least it looks alive down there and there must be something important if that barrier is protecting it."
I think the general theme in Alien was to show as little as possible as quickly as possible and let your imagination fill in the gaps - Hitchcock also worked that way.