Is there some context that would aid in understanding this? Because it doesn't make sense.
Hurricane Electric (HE) provides, among other things, DNS services. When a domain is placed in `clientHold`, as has happened to HE due to a spurious phishing report, it causes the domain to no longer resolve. So the DNS records for HE and all of HE's customers are gradually becoming unresolvable as caches expire.
A provider going rouge or a domain expiring will probably still leave 3 perfectly working.
[1] eg one of mine has awsdns-21.com, awsdns-50.co.uk, awsdns-11.net and awsdns-42.org