Both the Moogles and Anatas have chains of quests that need to be done to unlock them but these chains do not have the typical blue plus mark like other quests that unlock something. It would be a very nice change for new players to have these marked. Not everyone knows all the resources out there to track down this information. (And yes it does get old to have to keep looking this up to help out new folk.)
It's a bit of a stretch to say this is an interface issue.
But as far as the moogles are concerned, there are twenty quests that must be done to unlock the beast tribe dailies; however, marking all twenty of these quests with unlock icons would be a bit deceptive, as nineteen of them don't actually unlock anything.
If anything, the bigger issue is not the interface but rather the lack of an in-game resource to point the player to the current step in the chain (a moogle that gives a hint like, "oh, I hear [moogle name] needs help with something."); and some would just call this a normal instance of the reasonable expectation that players must discover some things on their own (I am of this camp; it's okay if you are not).
(for reference, the quests required to unlock moogles are, in order: )
- A Pebble for your Thoughts
- Spineless Wadjets
- Far from Home
- A Nutty Initiation
- Protecting the Pom
- Save the Pomguard
- An Urgent Message
- (A) An Uneasy Feeling & (B) A Moogle's Intution [Available simultaneously, both required to continue]
- Trouble at Zenith
- Into the Mists
- A Warm Welcome
- Cleaning House
- Finders Keepers
- An Unwelcome Surprise
- These Things Take Time
- A Meter Too Far
- Thar Be Dragons
- Laying the First Brick
- Tricks and Stones