You can have an aggressive setup with flat bars. I do. Get 45' backswept bars, remove some spacers, and use a longer stem. Combine with ergo grips, and now you've got a way more ergonomic setup than drop bars, and you can put some weight on your hands because your palms are fully supported, and your hands are close in, like you're doing a pushup. If you can support most of your weight during a pushup for a few minutes, then you can support a fraction of your weight on and off during a ride. It's a bit like aerobars, but more flexible, and you can crouch as low or high as you like.
And with the flat bars, your cockpit controls are always in reach. With drop bars, multiple positions or access to controls: pick one.
People bash flat bars because they've never remotely tried to run them this way. Long flat bars are dumb for road applications. The backsweep, or at least narrowed bars, is critical.
Your post is baffling, all the more so because you actually seem to believe that what works for YOU is what works best for everyone, universally, across the board, without exception.
I ride bikes with riser bars, flat bars and drop bars. All are comfortable. Brakes and shifters are easily accessible from both drops and hoods. From the tops/flats, no but it's an easy transition to the hoods or drops. I spend the most time on the hoods but drop bars give you at least 4 distinct hand positions which is superior for comfort over long rides.
In theory, multiple hand positions are a superior setup: you can ride for speed (drops), flat terrain cruising (hoods) or climbing (tops/flats). Flat bars regardless of sweep only offer a single hand position. This is bad ergonomically for longer rides. OK, I don't really believe this as I've ridden on multi-hour rides on flat bars and didn't have a problem with comfort. It's just to say I can make up any wack a doodle argument and promote it as truth on the internet.
In reality, I really like wider, conventional drop bars, with a relatively thin tape. Compact drops don't allow you to get aero enough. Even though I have average sized hands, I don't find the drops large enough with compacts either. And thick cushy tape just feel vague and imprecise.
tl, dr: don't oversell or overhype a personal setup as a universal, iron-clad law.
You're the first person I've encountered who has claimed that swept back bars are useful for an "aggressive" ie aero, quick handling ride. Swept back bars were designed for an upright ride. Nothing wrong with that, but the more upright you are, the less aero you are. It's not the "correct" ride position: it's simply one option among many. There's nothing "right" or "wrong" about it as you imply.
Second, you can use ergo grips with flat bars with little to no sweep. You don't seem to take this possibility into account.
Third, some riders find ergo grips on flat bars as well as drop bars comfortable. It's not either/or.
Maybe ask others first what setups they find comfortable instead of assuming you know it all.