The Buddies have dropped to 11th in the table after losing three games on the bounce at the hands of St Johnstone, Celtic and Dundee United.
But following their penalty heroics at Pittodrie, with Goody one of the scorers in the 4-2 spot-kick success that came after a hard fought 2-2 draw, the Saints skipper says all that matters is getting back to winning ways in the SPL.
The one-time Republic of Ireland international reckons it would be criminal not to build on the Don raid when they travel through to Easter Road on Saturday.
He said: "The victory at Aberdeen was a fantastic one for St Mirren and everyone associated with the club.
"But the SPL is our bread and butter and it is vital that we use this victory over Aberdeen to put together a run of wins and start to climb the table now.
"If you leave the Celtic result aside, we were very unlucky not to get something both against St Johnstone and then Dundee United, so perhaps our win was the one we were maybe due a bit of help with.
"But you look at the SPL table and we have dropped right down to 11th place.
"We need to be climbing back into that top six and we have to make a start to do that at Easter Road.
"As you can imagine the boys are really buzzing and we have to use all of that positivity to produce a good result against a Hibs side who are going as well as any in the SPL."
Goodwin was keen to pay tribute to his fellow spot-kick heroes Gary Teale, Kenny McLean, Marc McAusland and keeper Craig Samson whose save from Cammy Smith proved decisive.
"I think every one of the lads who stepped up deserved enormous credit," said Goody.
"We practised penalties the day before and we all knew who was going to take them, but it still takes a lot of courage.
"Especially for young Kenny McLean, he showed real bottle. But then big Sammy has produced a great save to deny the lad Smith and that was us through to the semi-final.
"On a personal note, there was never any doubt that I was going to take one of the kicks and the reaction I got from the Aberdeen fans made it a moment to savour after it went into the net."
HE ADDED: "Although we had a lot of great individual performances it was a real team effort. But we've had our day off to enjoy the victory and now it is all about focusing on the Hibs game.
"The League Cup semi-final is next spring and that is a long way away, but we need to be putting wins on the board in the SPL.
"I think the one thing that is a disappointment is that the draw is not made until a week today which is well after the last quarter-final at Ibrox.
"Everyone has got a great lift from the result, but now you just want to know who you have been drawn against before you get back to the SPL. For me it is a mistake not to do it as they do in England when it is done straight after the last quarter-final."
Turning his attention back to the trip to Leith this weekend, the Paisley skipper has no doubt who the danger man will be for the Hibees.
He said: "We have already lost to Hibs at our place 2-1 and Leigh Griffiths got both the goals, he is bang in form.
"So he will take some watching, but Easter Road is a great venue and we will be well up for this one. Like I say, the win at Aberdeen has to be the start of a fightback in the SPL, not just a one-off."