For your first job, no imo. However, for any job you may be interested in but don't want to deal with grinding it, I don't see the issue with it. I personally used a jump potion on astro (back when it was Stormblood and it jumped you to 60). I would also consider a jump potion on a class you have NO interest in if you want to experience RDM/SAM/GNB/Dancer as early as possible. (My other half did this with Paladin to get Gunbreaker early and he doesn't regret it).
If you do jump a job, just remember to take time and learn a rotation or do some things solo to learn it.