"We're just disappointed all round. It has put a bit of a gap on the table," the centreback said, struggling to find a reason as to why they had suffered stage fright.
This Sunday he expected the side to come back fighting against Southern United at home.
A grinning Nix coach Andy Hedge said his predominantly young charges also came off the park complaining about feeling lethargic.
"I think the conditions played a big part, but the wind was going down the park so it was equal for both teams," Hedge said.
When Nix moved the ball they created chances but when they took too many touches they gifted Bay chances, he said.
"They are young players so they'll make mistakes," Hedge said, pleased that A-League players Tyler Boyd, Matthew Ridenton and captain Alex Rufer came down to show the youngsters how to do a professional job.
For Bay coach Brett Angell, who vented his spleen and who seemed to entertain thoughts of sending a plastic chair into orbit just before halftime, the frustration of poor finishing and a brittle defence continued.
Englishman Paul Halpin provided impetus in the first half, unselfishly putting through crosses and rattled the crossbar, but his substitution early in the second spell left Bay poorer.
Fane Morgan should have put the ball into the net in the 16th and 26th minutes but a charging Nix goalkeeper, Oliver Sail, and a lack of conviction from the teenage striker put paid to that.
While Morgan has beefed up, perhaps in a bid to stand his ground against imposing defenders, he seems to have lost his killer instinct. Injured Sean Lovemore could only watch.
Angell subbed Morgan with Joe Sowden in the 79th minute but, as Hedge pointed out, young players will learn from mistakes.
In the 19th minute Bay midfielder Victor Lekaj and Nix counterpart Justin Gulley found a novel way of exchanging Christmas cards while wrestling on the ground but referee Matt Conger reminded them there were 18 days to go.
That lapse saw the visitors strike in the 22nd minute through Ridenton, an elementary tap in after Boyd adroitly cut the ball back from the goal line.
Ex-Bay bench player Nathaniel Hailemariam made it 2-0 with sublime footwork as the hosts' defence nodded off in the 30th minute amid pin-drop silence.
A minute later midfielder Ryan Tinsley fed a ball through to Halpin in the 18m box but Sam Wilson brought him down 5m in front of the right upright.
Tinsley had keeper Oliver diving the wrong way to bridge the gap to 2-1.
Boyd scored from the penalty spot two minutes into added time before halftime for a 3-1 lead following a trip.
Five minutes into the second spell, Haviland conceded a free kick on the edge of the top edge of the box, only for Boyd to curl the ball over the wall from the pavilion end to beat keeper Joshua Hill for a 4-1 lead.
It took three minutes for Bay midfielder Mario Alberto Barcia to make it 4-2 after the Nix failed to clear the ball from the box.
In the 72nd minute, the Bay defenders were again tip-toeing in the 18m box. Several pushes and nudges later, Hailemariam slid the ball into the net from point-blank range for a 5-2 lead.
Lekaj's set-piece efforts were below par but no one appeared to be stepping up as a back-up man. Maybe they were waiting for the green light from Angell or Haviland but it never came.
