TBH I don't know why auctioneers like this even exist any more - I'm sure it would be more profitable to stick it all on Ebay.
The company Seven Technologies Group Limited has no interest in obtaining the most profit, since they are in administration, have no control, and won't benefit. The creditors have no control, so tough luck on them.
The Joint Administrators have no interest in obtaining the most profit, since none of it would appear in their coffers. They do have a requirement to
be seen to get the open market value of the goods - which can be defined as the price that realised at auction.
The Joint Administrators thus want the least hassle, so they pass the whole lot to an auction house for cataloging and sale. Having recently had to dispose of my parents' belongings within a "reasonable" time, that hassle is non-trivial!
Things at general auction tend to get near a competent auctioneer's guideline price.
Perish the thought that an auctioneer might be incompetent.
Perish the thought that an auctioneer might undervalue something deliberately and tip off their friends.
Perish the thought that an auctioneer might describe it so incompetently that their friends can come in and see its real value.
Perish the thought that someone in the defunct company might want to purchase something at a knockdown price for their next company.
But "least hassle while still discharging legal responsibilities" is a sufficient argument for the low prices of poorly described goods.