Duty Finder Lockout

I happened across a poor party earlier this evening in the Roulette; after two failed attempts at the second Vault boss and people making the same mistakes / not listening, I decided to Abandon rather than put up with it.

To my surprise, however, the resulting lockout period even affects my ability to do under-sized solo runs (and fixed groups as well, presumably).

Is there any specific reason for this, and do people agree with it? I fully accept the 30-minute penalty for abandoning; no argument from me there, and I could even see it being longer. It seems a little ridiculous to also be locked out of solo'ing a dungeon for Wondrous Tails progression or some such, though.

Thoughts?

It also effects your ability to do Triple Triad Battle Hall...which really struck me as odd...

I think the lockout isn't on the dungeons as such, but instead is a lockout from using the DF period.