I'm also 100% convinced Jon's post is well spirited and as someone working from home throughout the pandemic can equally relate to teams trying to find out what to talk about in these end of year meetings in lieu of Christmas lunches. An obvious part is to focus on what went well, than what went badly. I can also relate to much of his post.
There are obviously things that haven't went well - many people are clearly isolated, struggling with childcare, perhaps even struggling spending time with their families as there's little/no escape or balance to their lives any more. They work and live in the same space, with no commute to clearly delineate personal life from work life. However to sit and mull these over at what is a challenging time of year for many, as we go into ever greater restrictions, adds to value.
I lost weight in lockdown 1 but put it all back on in the brief spell the pubs were open.