jump is a ritual spell that can be prepared by anyone with 1 level in wizard at any time and then unprepared after (no spell slot cost), basically inconsequential once you understand how to wizard dip to gain access to all spells. In BG3 all you need is 1 level wizard and you can scroll learn every wizard spell in the game if you are a pure caster of another type (such as bard, druid, cleric or sorcerer) or every wizard spell up to 4th spell level if you're a half-caster (paladin/ranger). As long as you have 1 person in your party with 1 level of wizard you have infinite access to all ritual spells for your entire party. That's 1 level out of 48 total levels.

I would much rather have Halfling's stealth advantage and lucky, which brings your fail chance from 5% to 0.25% on d20 checks you master (saves, skill checks, attack rolls) - or superior darkvision, stealth advantage + wisdom save advantage from deep gnome.

There's a million ways in the game to gain 1 use of misty step (like an amulet, for example. Or a scroll). There's no way to get lucky except to be a halfling and it will be impactful on every d20 roll through the entire game (there's like a million) and it gets better and better the higher your modifiers are (which get very high due to player power creep and magic items).

Gith are pretty good but a solid A-tier. S-tier is firmly in the hands of halfling, deep gnome and maybe half-orc for certain builds.