There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
They definitely didn't venture in there for a social call. Especially not while dragging their cubs with them. That makes even less sense.
Keep in mind that the Mhangeni don't have access to maps and up to date records of every lions whereabouts like we do.
They likely made some errors in judgements, believed that the entire Nwas coalition were further to the east, didn't know there was a pride there and thought that they could get away with venturing just a little bit further south to follow that antelope herd or something. Until it was to late.
Mistakes happen. Not every lions decision is based on sound logic or makes sense. Sometimes they just screw up and do exactly the opposite of what we, looking up from above with our fancy maps and information network wouldn't do when walking in their pawprints.