Winterbottom was almost collected by Broc Feeney on the run to Turn 7, the #88 driver forced to take evasive action, before getting in van Gisbergen's way in the middle of the final corner just moments later.
The incidents contributed to Triple Eight Race Engineering locking out the sixth row of the grid, while Winterbottom was relegated to last with a three-place grid penalty for the incidents.
“It's just shit really… you're first gear and then I don't even know who's coming and then all of a sudden you're doing like 40km/h and at 260km/h there's blokes catching you, so I have no idea where they were,” said the frustrated Irwin Racing veteran.
“It's my mistake but we're first gear trundling along, we need to get going and respect what they said in drivers' briefing.
“Anyway, I stuffed them over and I can't change now, it is what it is.”
Even after that van Gisbergen admitted he was “still angry with Winterbottom”, but pleased to have reacted to the last-ditch carnage in first qualifying by running earlier in the second session.
“It's pretty self-explanatory,” van Gisbergen said of the incident, between the two qualifying sessions.
“It's a shame… they were pretty strict on it in briefing so hopefully they have penalised those guys but it is what it is, it doesn't get our spots back.”
Race 11 presents an opportunity for a new driver to enter the 2022 winners' circle, van Gisbergen and Chaz Mostert having won all 10 races to date between them.
While van Gisbergen will start 11th for the 12:05 AWST/14:05 AEST encounter, Mostert qualified 21st as Walkinshaw Andretti United's disastrous weekend continues.