Now that you say it, yeah, the hitbox of the dogs is really pretty strange. Kinda like with burricks, just even more small/low.
At least they don't notice you from 2 kilometres away, like real dogs...
TBH, I found them a bit expendable though. Not my cup of tea, and, I don't really see the point.
This is subjective but yes, AFAIR (spoilers galore) the woman in BF is the girl from EV, and EV explicitly takes place by in-game information as a side story right after L'Arsene, and both the stories (fleetingly) connect in EV in that we also meet L'Arsene there, so all take place in the same universe (in the above temporal sequence).