Are they kidding? I get it you get facial cues and quicker back and forth. But you also don't get cut and pasted professionally diagrams, links to sources, snippets of code etc etc.
You also can't easily refer back to the conversation later. At best you have what you remember/think the guy said at the meeting last week. Email: you can refresh your memory, use it as a checklist for features etc etc.
Lastly and hugely important: meetings are prone to ad hoc very complicated questions. I hate being put on the spot: hey what's involved in moving this desktop app we've been developing for 12 yrs into cloud based db and SaaS model, and will it be profitable take your time you have 2min. Very susceptible to the best bullshitter in the room overselling their/your team's capabilities. You then go off and burn a week trying to meet stupid deadlines for impractical projects you've gotten volunchose into.
I much much prefer these offline communications for anything technical. Better to spend an hour thinking about the answer to this crap than instinctively commit to something that turns out to be stupid. It also has the right social consequences I think in that the guy with the original dumb idea doesn't get to leave the room with a room full of people thinking how great they are at getting stuff done then you a few days later be the bad guy pulling out of commitments. Instead they ask something stupid. One hour later the group (or them individually if you're being nice) get a 1 pg response enumerating all the ways that was a really dumb idea. Said stupid person then learns to ask one on one first before piling on with a roomful of your peers and superiors.
Techinical decisions shouldn't be made because you can fill a room with people that really really wish it should be the case but can't be bothered allowing you the time to think. Somehow they need a month and a retreat to come up with a new commission structure for the sales team, but completely rearchitecting a product is a question in a weekly meeting between wishing Mary a happy birthday and picking pizza toppings for lunch.