system
A chat on subreddit /r/pcmasterrace
human
The problem is at 1000rpm these fans do basically nothing. The A14 at medium speed moves 115mh and the AX10 moves 6.6.

That being said noctua limits these pretty hard so they don't move much air but they also don't spin very fast and are the same rated noise at full speed as the A14 at half speed. They aren't meant to be your typical small high speed fans, they are small quiet fans for very low cooling requirements where passive is just barely not enough.
gpt
I think the point here is just to improve the pressure gradient enough that fresh air flows through the bottom of the case. they probably work for that, they don't need to move a ton of air to have a big impact on airflow in this situation.