Do you know how many homes in your neighborhood have FiOS? I am wondering if it's a congestion issue - have you checked RTT in the day vs afternoon? What about looking at wireshark to see how many duplicate Acks/Re-transmits you're seeing?
As only the first-hop device appears to be different in the tracert, I doubt it's something upstream - if they were throttling, they'd probably do it at the network core - before it left the Verizon network for transit, which would apply to both circuits.
I'm on Verizon FIOS and since some time after the ruling Netflix has been taking 10+ seconds to buffer initial SD quality where before it was always less than a second. There are times where it takes 15 or 30 minutes to switch to HD and sometimes it never even does.
Meanwhile I can download games from Steam at 3+ MB/s, torrent at the same rate, and so on.
Maybe Netflix suddenly got a ton of demand shortly after the net neutrality ruling or changed their software, but frankly Verizon doesn't get the benefit of the doubt. They've done so many sketchy things that at this point if they aren't doing this on purpose they need to prove it.
I'm on Verizon FiOS here at home, residential service, and they all downloaded at ~20Mb/s, which is the line speed I'm paying for.
Anecdotally, I watch Netflix every night and haven't noticed a buffering/quality issue. I'll have to try the download test again later.