He did/does. However, I thought the complaint was that his judgement should be questioned because he supported Trump specifically, not republicans generally. If the complaint is that “he supports republicans, so don’t trust him.” That complaint is simply generically partisan. At least for me, general partisanship or party alignment doesn’t sway my opinion of an individual.

Trump is divisive and an atypical republican, so I can certainly see how someone supporting him could raise an eyebrow to folks with conventional political wisdom, even if I understand why someone like Thiel would support him.