In fact, the Queens Park Rangers striker could not believe neither Arsenal nor Tottenham Hotspur made a move for the France international.
Zouma is set for a spell on the sidelines after suffering a hamstring tendon injury during the 3-2 victory against former side Chelsea on Saturday.
A scan on Monday revealed significant damage to the 27-year-old and he could be set for up to 12 weeks in the treatment room.
The Hammers are currently relaxing in the final Champions League spot in the Premier League and Moyes has shown an astute tactical outlook throughout his second spell in east London - meaning the absence of Zouma is not perhaps as disastrous as first feared.
Austin said on Drive: "The way he has just got West Ham playing and it is special what they have got going at the moment, to a certain degree.
"They're looking to push into the top six, top four and continue to play in Europe.
"Do you know what has been quite refreshing? It's not affected them, playing on a Thursday where you notice a lot of team struggle playing on the Sunday."
Zouma moved across London after West Ham agreed a fee close to £30million and he has looked assured alongside Angelo Ogbonna and Issa Diop thus far.
Austin was therefore left stunned when neither Arsenal nor Spurs made a move for the former Chelsea defender because of their own current defensive struggles.
"Kurt Zouma is definitely up there," Austin said. "Mate, other clubs are looking at him and thinking, 'We should have went for him.'
"Spurs, Arsenal."