Verizon normally won't allow images that contain potentialy identifiable infromation such as an IP address. Sanitize the endpoint IP out if it's being traced to a Comcast customter and you'll be fine. Not that IP addresses identify folks much anyways without some data mining techniques.
Re-read the name of Hop 6. That's a router serving as a gateway between Verizon and Comcast. Comcast, being a Tier II provider pays Verizon, a Tier I provider, for connectivity to Verizon and other Tier1 providers (should they go over Verizon). The same deal with Comcast and TATA happens routinely whenever there's a peering feud going on. Without seeing more information than what a Traceroute gives, the problem could be with Comcast not paying for a big enough pipe, and at a specific time of day the links are being saturated. It could also be a legitamate problem with Verizon where the point between their backbone and their customer networks are saturated, but that is less likely.
To say the least, not enough info here to draw a final conclusion. If you can get a trace from the Comcast connection to your Verizon connection, that will help a little more. In the world of networks, though, business decisions trump senseful thinking. Comcast is no more or less guilty than Verizon is when it comes to how they maintain a level of service to other providers.