We have eaten QS on MANY disney world trips, including four times at Satuli Canteen in the past few years before covid, and every single time my husband would find a table with the kids while I got the food, or vice versa. It also looked like most other people did the same thing, based on the fact that usually it is only teens and adults waiting at food pickup, not a bunch of toddlers and babies crawling around. Not once (pre-mobile order) have we been told we needed to have our food to sit down, nor have we ever been asked to vacate a table we occupied while waiting for the food.
Edited to add: I realized after posting I was misreading your question a bit. What mobile order specifically does to make this worse it is locks guests in to a miserable situation that they won't find out until it's too late. Before, crowds could self regulate. Before mobile order, there were several times we walked into a QS restaurant, saw the size of the line and the lack of empty tables, and left to try somewhere else, or shoot for a same-day TS ADR (which used to be much easier too). Now, you can't even see the inside of a QS restaurant until you've bought and paid for an (expensive for a family of 5) meal. Not to mention, I'm sure part of the reason my youngest ran away is that he was tired and hungry and hot and overwhelmed from being forced to wait a long time outside in a crowd--exactly the reasons we have a
DAS pass for him, but that doesn't do any good for mobile orders.
If that is the case, then I think I'd have an equally valid complaint to levy against mobile order. Eating at 4pm is not something I would enjoy--and I can tell you right now my kids would pick at their food and be hungry again at 7pm. If it works for you great, but going from being able to eat at normal times to being locked into "rope dropping" restaurants does not sound like an improvement to me.