Sure, it probably makes for better story that Barnabas isn't at the Old House when Nathan shows up -
Book Two/Issue Four/Page 7 - Willie: 'I'LL SEE IF
BARNABAS IS BACK--' - but given the fact that they set things up that there's practically a blizzard outside, where the hell has Barnabas gone? For a casual stroll in the blizzard? And sure, in the comic Barnabas' reaction to the injection wasn't anywhere near as bad as it was on the '91 Series. But still...