Whoever writes those Letters must piss themselves laughing at the lies : " many have expressed appreciation...." A couple of nutters may have, the rest of the JW's found it both a chore and a bore.
Actually I believe that.
Though most JWs would never admit it, going to the 3 day convention in person was an absolutely grueling, exhausting, hell-like experience.
Travel to the convention city, stay in a budget hotel where you hope there aren't too many bedbugs, wake up at 6 AM to eat your bland standard "hotel breakfast food", sit around in horridly uncomfortable chairs wearing horribly uncomfortable clothes for 8 hours, alternately freezing & sweating as the cavernous building's HVAC rumbles on, then sit in traffic in the parking lot for 45 minutes until you can drive back to the hotel, then drive to an overcrowded chain restaurant & wait an hour for a table to clear up, then drive back to your hotel....
...then repeat for the next 2 days.
Oh, and if you have kids, it's about 50 times worse.
I suspect most JWs far preferred watching* the convention program on their TVs while sitting on their own sofa wearing shorts & a t-shirt.
* by "watching" of course I mean having the talking heads drone on in the background while you scroll through instagram, fix yourself some coffee, read your facebook feed, etc.
This news about the video convention for 2021 will be welcomed by the vast majority of JWs.