Yes, I am. I have no doubt that whoever, along with David Muir, decides what stories are reported is not an ABC or Disney executive and is probably in a managerial role with just ABC Evening News.
As an every evening watcher we have noticed the obvious shift. Our sample is well over the 200 unit statistical sampling minimum used by most statisticians for reasonable accuracy and our exposure reference is about a year. The change in emphasis has been over the last five or six months. There is no question in my mind that coverage of weather related events has increased. The reasons and motivation to do so is undetermined and open to discussion.
There has not been any attempt here to include other news organizations that I do not watch often enough to have observed the noticeable change that I have alluded to with ABC Evening News.
I did time it tonight and it was only one story (the tornadoes in Texas) which was covered in less than two minutes. There is almost an every night discussion by and with the ABC chief meteorologist who maps out weather all across the country and spelling out lots of dire warnings. That did not appear tonight. I will continue for a few days to keep a count. It was a busy news day with the bulk of the coverage going to the Notre Dame fire ... or perhaps David Muir read this thread and didn't like the glare of the Signs 101 spotlight.