I'm going to say this again for devil's advocate purposes.
Bard Wanderer Minuet gauge is composed of two aspects, the song timer and the arrow stacks. How many stacks you have equates to the strength of Pitch Perfect when used, and once used, you have to charge it up again.
Summoner gauge transforms based on usage of Aetherflow skills, leading into being able to use Dreadwyrm Trance, which further leads into summoning Bahamut-egi itself. In some cases, Dreadwyrm Trance and Bahamut-egi might as well be a caster limit break in terms of overall strength when properly utilized.
For a non-DPS example, let's take Scholar's fairy meter. Their meter increases based on usage of Energy Drain (the only offensive Aetherflow skill that SCH has) and Excogitation (a preventive buffer heal that activates when the target's HP drops below 50%). It's used to execute Fey Union, one of, if not -the- strongest heal over time skill in the entire game, and Fey Union drains the fairy meter.
I'm sure several other jobs that I have little experience with have gauges that behave similarly. If these are not the definition of something that behaves like a limit break bar, then I don't know what your standards for one are. Lilies are very boring in comparison (-especially- compared to the fairy meter, which is somehow even more simplistic than lilies in design but more intuitive in practical use), and that's where most of the grievances lie.
Stop using my (and other peoples', for that matter) class to justify your arguments.