It seems pretty cut and dry; DDoS-Guard would need a physical presence there to operate, they didn't, so the IPs were revoked. The phone call was simply a tip to investigate.
You're quoting a paraphrase of a statement from the CEO of the company about to get the majority of their IPV4 space revoked. Of course they're going to maintain that they're in the right.
Where did you find that LACNIC didn't investigate this?
Where's that quote from? The article points out they make no mention of any Belize presence, and LACNIC spent several months investigating the tip, which happened in November. That hardly seems reactionary.
