That node is set up to ignore some ICMP traffic, which is what this test uses. This is a protection mechanism so the servers don’t go down with every DDoS attempt.
The looking glass is best used if you cannot login to the game or bnet. Instead, you’d want to run the WinMTR suggested at the top of the forum:
https://us.forums.blizzard.com/en/wow/t/common-technical-issues-and-solutions/22912/23
Overall, the tests look fine route-wise, but the 100% packet loss test when Blizzard tried to ping you might be a concern. The WinMTR will tell more.