In theory a throttle body setup could shut off some of the injectors to avoid the low duty cycle issue but I don't think Holley has that feature in the Sniper line. The Sniper 4500 throttle body is advertised as "not for engines making less than 800 hp". So if they could shut off the injectors at low speed they wouldn't need to advertise it that way.

I do agree, if the software was smart enough to disable half of the injectors at idle then the Sniper 4500 would work on this engine and would most likely make more power.