I just want to bring up the excellent post Borbarad has mentioned in his posts.
“Our systems are failing! Our weapons are spent!”
And with all that, Sadow holds up his hand and...the results:
“Those flares...the explosions...”
Now compare this with what we know the actual ship does as seen with Aleema Keto:
I think that, with textual and visual evidence, that it is is highly possible that Sadow performed the feat on his own.