It is well established that customer teams are dependent on their supplier teams for their success, as an inefficient or unreliable engine can spell disaster over the course of an F1 season.
Ferrari's power unit was one of the most reliable in the first five rounds of the season, with both of Ferrari's customer teams enjoying the benefits of a dependable engine that also packed a punch.
This impression began in pre-season testing, where it seemed Ferrari had assembled a solid power unit. The Scuderia suffered from very few issues in testing, whilst Haas and Alfa Romeo's pre-season gremlins were generally unrelated to the engine.
This has changed in recent Grand Prix, with the new iterations of Ferrari's power unit failing for both the main team and its customers.
Haas was forced to retire in Baku with Magnussen and in Canada with Schumacher due to engine failures. In the laps before these retirements, critical points were on the cards.
Guenther Steiner has spoken about the team's helplessness in resolving this problem, as quoted by gpfans:
"If he [Mattia Binotto] had explanations, then he would have fixed the problems already.
They are looking into it because as disappointing as it is for us, it's maybe even more for them because they are fighting for the championship.
I don't even know what broke on our car [in Baku].
It's one of those things you don't put a lot of energy into wanting to know because even if I know, I can' do anything anyway."
Haas F1's 2022 has been a difficult one, quickly declining after the magical start to the season in Bahrain.
Engine problems are not the most significant issue the American squad has faced this year. However, Haas will hope that unreliable power units do not compound their already costly self-inflicted strategic errors and operational mistakes.