A 1" drain can do a little under 600 gph. So if you have two 1" drains you'd be about 1200 gph through your primary drains. That would get you up to just under 6x tank volume through the sump. Without using your emergency drains.
If you wanted to go up to 10x tank volume through the sump you'd be using all 4 drains. At that time it would only take one of the drain lines becoming clogged before you had water on the floor.
If you don't wanna do baffles you could do a reverse float switch on your pump to run it as a kill switch in that event to limit the overflow.
If it were my tank I would be worried about the possibility of flood. Not all insurance would cover the damage if you did end up loosing a large amount of watr, it could get pretty expensive.
I'm not trying to tell ya what to do, just tryin to help out some from some experiences I have had. Mine wasn't a drain that clogged, it was a bulkhead on the closed loop of my cryptic tank that snapped. But because of my lack of baffles I pumped about 60g of water more then I needed to on the floor. I ended up having to replace the flooring, subflooring, drywall, and getting the vapor barrier on my house repaired. It was much more expensive then one of those little switches would have cost, or even a custom sump with baffles.
JME