It's too early, yes, but isn't it also the first polls he has won in a long time?
With the somewhat positive state of the union, Trump coming more into focus towards November, and the difference in ad buys starting to take effect, I think we could realistically see a noticeable shift in the polls over the next 3-4 months.
No, Biden has won several polls over Trump, including ones just before the debates as well. Trump is ahead by a small margin in about 80% of the other polls.