Rubeus Hagrid is one of the few characters in the Harry Potter franchise from the wizarding world who cannot perform magic, ...

Tom Riddle quickly accepts the fact that he is ... The relationships developed with Hagrid and Ron are examples of this. Friendships are the most important things in Harry's life; "More than ...

The explanation here is, sadly, that it was simply easier to accept a young Tom Riddle's explanation that Hagrid and his spider were responsible, and that people probably didn't even think he was ...