Comcast used to provide /56's but they tightened that down to just a /60. I personally don't think there is an issue with handing out /60's like candy, but I a

Comcast used to provide /56's but they tightened that down to just a /60. I personally don't think there is an issue with handing out /60's like candy, but I am not Comcast and can't speak for their network engineering team which made the decisions they made for their millions of customers.