I'm not saying they are wrong, but I do want to address a problem with those claims:
Alarmists have been saying for centuries (no exaggeration) that technology will wipe out jobs and make it impossible to make a living. Each time, they have been wrong. Technology has lead to increased standards of living and more job creation. Yes, outdated jobs are destroyed, but they are replaced with new, often better paying, ones.
Yes but the process is not an easy one, many people as you said lose their jobs, poverty increases, etc. It's not a counterpoint, we are both stating what will always happen and we agree that it is for the best. Regarding the main topic, announcements like this is what usually start a bank-run or similar panic situations which makes the whole situation much worse than imagined, so hope these economists are basing their predictions from some very tangible information.