I also thought the same as Bill.
But soon realised it couldn’t be because of its angle and direction in the sky.
I may be naive, but I thought that sporadics could come from any direction at any time.
If that is the case, I don’t see why one shouldn’t masquerade as a shower meteor.
That said, I am very far from being an expert in these matters and welcome comments from those who are.
(Yes, I agree with the analysis that it was not a Quadrantid.)