You can mitigate any reliability concerns by having two return pumps. This also applies to reliable AC pumps, as I’ve seen impeller magnets swelling and impeller blades break. In this case I would prefer two smaller Jebaos which would cost similar to 1 good AC pump.
Sicce SDC pumps have good power/flow ratio, but are noisy and vibrate a lot compared to other DC.
DC pumps are essentially AC
If I was setting up a new tank absolutely 100% I would run dual return. Not an option at this point unfortunately.