That's not true. I'm sometimes faced with a lot of companies to choose from and if one of those companies has a badly designed logo, I'll immediately become suspicious of all of their other qualities.
On the other hand, a really good logo doesn't have the opposite effect, because I know some designer (or AI, whatever) made it for them.
On the other hand, a really good logo doesn't have the opposite effect, because I know some designer (or AI, whatever) made it for them.