Possible documentation error in wildcard syntax recommendation

The user manual for version 2.33.0 makes the recommendation to use the following configuration to match the MQTT specification for better performance:

<wildcard-addresses>
   <delimiter>/</delimiter>
   <any-words>#</any-words>
   <single-word>*</single-word>
</wildcard-addresses> 

Shouldn't it recommend "+" instead of "*" for single levels?

Additionally, it would be good to clarify where this XML node is supposed to go. Top level? Inside <configuration>? Inside <core>? Somewhere else?