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Going forward, Walkinshaw believes the international opportunities afforded by the WAU partnership will open doors to potential backers.
Set to wear NAPA branding, which also backs Rossi's entry for much of the IndyCar season, it's the most obvious example thus far of the commercial links between Walkinshaw and Andretti Autosport.
“Things like that are a further example of how the relationship with Andretti and Michael (Andretti, team owner) is bearing fruit,” explained Walkinshaw.
“NAPA have been a huge sponsor for Rossi over in the States for I don't know how many years.
“Now they're coming over here and supporting us in the same way that we've always worked with some of our partners who want to go into a global programs, especially in the US.
“We pitch those over to Michael and his guys at Andretti Autosports as well.
“That's one of the benefits of the relationship that we're seeing first hand.”
Though Walkinshaw admits losing a sponsor during a season is never ideal, that it happened shortly before the biggest event in the year does at least offer a silver lining of sorts.
“Putting aside an ordeal of having to go through a terrible injury from one of your people in your team, or a driver, the second worst thing that can happen is a sponsor going into receivership halfway through the season,” he observed.
“Let's be realistic about it. We're not going to shy away from that.
“The opportunity in it is that we have some time to go out there and sell.
“(There's) lots of good conversations ongoing with existing and new sponsors that we've been working on for a while anyway, and we've got the best weekend of the year to sell.
“There's nothing you want more than being able to go in front of a sponsor and say, ‘Hey, would you like a good deal on a sponsorship for the rest of the season that includes the enduros and Newcastle?' That's a unique experience.”
Despite the setback, Walkinshaw maintains that decisions on the team's driver line-up for 2020 are unaffected.
James Courtney had already announced that he will exit WAU at season's end and Scott Pye is also off-contract.
The remaining events in the 2019 Virgin Australia Supercars Championship are the Bathurst 1000 (October 10-13), the final two Pirtek Enduro Cup events on the Gold Coast and at Sandown, and the Newcastle 500.