I don't say this with any disrespect but this is I'm sure the highest profile case this attorney has ever worked on and he is not used to receiving anywhere near this amount of attention. And experienced journalists know this and they know to keep pressing the buttons to get a response.
When I was a new attorney at a very big law firm, someone from a national newspaper got my name off a court filing in a case I was working on. They called my office and left a voicemail for me to call them to discuss the case and make a statement. I was so excited, I couldn't believe someone from a famous newspaper knew my name and wanted to talk to ME. I drafted a whole long statement about how our client did nothing wrong and this is an attempt to smear an important business, etc., etc., and brought it in to my boss excited to show her my masterpiece. She put it on the table and looked me in the eye and said if I ever gave a statement on behalf of a client without getting approval from the firm's management committee and the client's CEO I wouldn't work there anymore. I wanted to die. In retrospect now as a partner and more senior attorney I understand there was a much nicer way this could have been handled so I'm not defending that part of it at all.
I tell this story to show that the journalists KNEW to contact the junior attorney because they knew they had the best chance to get a statement from someone who didn't know any better. Here, they keep texting this guy because he apparently doesn't know any better and his clients are obviously not savvy in PR and crisis communications. It is your job as the attorney to KNOW how these things should be handled. And if you have never handled a high profile case, it is your duty to at the least partner with someone who has. JMO