Williams technical director Pat Symonds is still on the sidelines with regard to Haas F1 Team's partnership model in Formula 1.
Symonds is unsure the US squad's approach to Grand Prix racing doesn't diminish the 'constructor' status of fellow F1 teams.
Founder Gene Haas has partnered with Ferrari to ensure his outfit's presence in Formula 1, acquiring from the Italian manufacturers all the components which it is not legally required to build itself, as well as securing use of the Scuderia's power units and wind tunnel infrastructure.
"The status of being a constructor has been gradually eroded," Symonds explained to Autosport.
"Some would like it completely eroded. What Haas has done is good for him, but I don't know if that is really the way F1 should be going.
"It's absolutely legal but is it really what F1 wants? I'm not sure. When we had the original listed parts, the long list, it was quite pragmatic I thought.
"It allowed you to sell a few sensible things like transmissions which are high value, low performance impact. But it got whittled away. Some want it whittled even further.
"I would prefer F1 to have more of an emphasis on constructors."
The former Benetton and Renault engineer praised Haas for its impressive points-scoring debut in Melbourne, but reckons the rookie team will have its work cut out for it to repeat the feat on more traditional circuits.
"With the pace in the race, we need to be careful how you judge it right the way through the field. said.