Michael's mom said that she did everything she could to prevent Control from getting his hands on the sphere data and she failed each time, so your interpretation is definitely not the right one unless you're saying that she's lying... which would be weird, to say the least.
I'm not saying she lied, I'm saying its not consistent with the events that happened.
The Sphere encountered Discovery in early season 2 because Burnham's mom directed it there.
But before this happened, we don't have an indication that Control even knew the Sphere existed, where it was or that it would get in touch with Control or one of Federation ships.
So, in the timeline before Burnham's mom directed the Sphere to Discovery, how would Control get its hands on the Sphere Data before it 'died'?
Via another Federation ship that the Sphere encountered? Perhaps a planet, or a starbase?
We do know that prior to reaching Discovery, the Sphere was travelling in deep space accumulating data for 100 000 years, and when it finally got to Discovery, it died within an hour.
Control only knew of the Sphere Data because Discovery crew would report its encounter with the Sphere to Starfleet... but without encountering Discovery, where did the Sphere go and download its data to for Control to even know it was there, let alone get its hands on it?