Artillery Ballista Totem duration affected by less skill duration

This may be an expected change - I would like clarification from GGG.

The poe1 wiki mentions:

"

https://www.poewiki.net/wiki/Totem wrote:

Totem duration determines the lifetime of the totem. Its base value varies depending on the skill. It is only affected by modifiers to Totem Duration, not Skill Effect Duration.

However, in poe2 supporting Artillery Ballista with Overabundance clearly shows the Totem Duration changing from a base 16 seconds to 8 seconds. Reducing Skill Effect Duration is desirable to cause the explosion from Artillery Ballista to trigger faster and I'm sure this is why Fast Forward is a recommended support gem... but reducing the Totem duration is very undesirable.

Is this an intended trade off or an oversight?