Is leisure travel a valid reason to get a second French passport?

I have an ordinary French passport, which expires in a few years. I am looking into getting a second French passport to make it possible to cross borders while my first passport is stuck in some postal service warehouse or at some embassy for visa purpose.

https://www.service-public.fr/particuliers/vosdroits/F21517 states:

En principe, vous ne pouvez pas avoir plusieurs passe ports français. Toutefois, un second passeport peut exceptionnellement être délivré dans 2 situations : si votre passeport est immobilisé pendant une période de voyage ou si le passeport risque de faire apparaître des destinations incompatibles.

https://translate.google.com:

In principle, you cannot have more than one French passport. However, a second passport can exceptionally be issued in 2 situations: if your passport is immobilized during a period of travel or if the passport risks showing incompatible destinations.

So my case seems to fit the first case "if your passport is immobilized during a period of travel". Must these travel be for business or in some other way compulsory, or is leisure travel a valid reason to get a second passport?

Note that 2 travels have to be considered:

1. The future travel causing the passport to be immobilized (e.g., passport stuck at embassy waiting for visa)
2. The current travel causing need to have a passport in one's pocket to cross the borders.

Therefore, I wonder whether it is ok that both travels are leisure, and if not, whether it is ok that 1 out of 2 travels is leisure and if so which one.

I am asking as https://www.service-public.fr/particuliers/vosdroits/F21517 is unclear on it. Later on the page they say "immobilized for a period during which you must travel" (emphasis is mine), which made me wonder whether leisure travel is ok:

Votre passeport peut être immobilisé pendant une période au cours de laquelle vous devez voyager. Par exemple, le passeport peut être conservé par le consulat pour une demande de visa alors que vous en avez besoin pour voyager.

https://translate.google.com:

Your passport may be immobilized for a period during which you must travel. For example, the passport can be kept by the consulate for a visa application when you need it for travel.