to ensure science in the public arena is as accurate

[GoodTaste]

Kuppalli appreciates the double-edged effect of her work being thrust into the limelight; she’s been harassed, but has also had the opportunity to ensure science in the public arena is as accurate and as evidence-based as it can be. She’s also aware that, as a woman of colour in a high-profile position, she has unusual privilege and responsibility. “That’s also why I take it so seriously, because there’s all these stories and articles and things written about how women are not getting opportunities,” she says. “Every time I get that opportunity, I feel very grateful.”
Source:Nature


Is “is” a typo here? Should it be deleted? Otherwise, What’s its subject?

 

[5jj]

she’s been harassed,
but (she) has also had the opportunity to ensure (that)
science (in the public arena) [subject] is [verb] as accurate and as evidence-based as it can be.

 

[Tdol]

If you want to delete it, what is not the subject?

 

[GoodTaste]

If you want to delete it, what is not the subject?

“To ensure science (to be) as accurate and as evidence-based as it can be.”
No subject is required.

 

[Tdol]

Use is.