I admit : I haven't paid too much attention to Halflings personally. I plan to play one, maybe, perhaps, I don't know. Partly because I opened a PHB last summer and saw that Halflings were no longer forbidden to be Paladins (and in fact there was no more restrictions on race-class combinations). So that was one obvious character designed (then again, I have several in mind, so it's not clear I'll play that one). Also because it would be my only DnD-Good character, and I'm debating who I should use for my first playthrough, especially if I only do one or two. Paladin isn't exactly my favourite class.
But I've nevertheless rested peacefully, safe in the knowledge that others were looking up the problems with Halflings and reporting on them.
I would have said I don't know if what is shown in the log truly allows us to conclude that there is a bug with Lucky. That being said, if you received a reply saying it was a known bug, then it was indeed a bug.
As for whether this particular Halfling-related bug was reported on, I found
this,
this,
this,
this, and
that. The key is to search for "+lucky +halfling" with the Advanced Forum Search.