I feel sorry for Mand who has fielded this onslaught single-handedly. Hope she's having a well earned rest this weekend. As you say, management could have shown their face and taken some of the pressure off her.
I'm certain that Mand is a real person, but was it her all the time or someone else using her account - so it looked consistent - because she was on all day practically for four days - and some evening and this morning ?. If it really was her all the time in person - she did exceptionally well.
Was she on her own - I guess not - if I had been a product manager there - I would have set up a special conference room - just to cope with this work and had back up to support the person on the keyboard, including myself and other senior staff - even if we didn't touch the keyboard..
I've never done a product launch over the internet - but in events where customers are in a conference room, at an exhibition or at HQ there was a big team of us, and the event led by either the Managing or marketing/sales directors - and when they didn't know the answer to the question - they asked the product managers. One memorable occasion like that we had about 10 Chief Constables in the audience and goodness knows how many Superintendents & Inspectors and civil support staff. That was an awe sum experience.
I am a real person honest!

And it was me all the time, and still is

, along with Chris for the first couple of days.
I've obviously had support from my team, our products department and the management team, but there wasn't much point all of us Comms guys hanging around the forums, we do have other things to do as part of our day to day role.