Verizon just changed all their FIOS plans to be symmetric up/down, so they're at least less guilty than other ISPs.
In addition, Verizon isn't just customers. They host sites, too. More Redbox streaming going over Level-3 would help to level things out.
Or Level-3 could offer cut-rates to online backup service providers, who recieve a lot of traffic from customers, and only a fraction as many requests. Or Netfliix could change their player to upload junk data to some random server all-the-time, which would help tremendously.
The point remains, no-fee peering has always required roughly equivalent up/down traffic, so the horrible imbalance Netflix causes, is going to cause peering disuptes, legitimately, without any evil conspiracy from Verizon and others. And that's not even getting started on Level-3's poorly concieved CDN, taking money from ISPs while futher imbalancing their peering arrangements.