No, that's isn't how it can be read. The very next sentence is "32% strongly approve"...
It's not 53% as you suggest, because it isn't a a direct inverse relationship.
The categories for the poll are:
Strongly Disapprove: 47%
Strongly approve: 32%
(Edit: 10.30.20 1:40pm ET original comment accidentally painted a rosier picture and showed 38% for strongly approve, not the actual 32% strongly approve from the Marist poll)
So the most “strong” categories are disapprove 47% to approve 32%.
And added together, Disapproval rating from “medium to high” is 54%, with approval at 43%.
(Edit: 10.30.20 1:40pm: The paragraph above originally added the values incorrectly, but has been corrected to reflect the total from Marist. This is the original: “So the most "strong" categories are disapprove 47% to approve 38%.
And added together, Disapproval rating from "medium to high" is 54%, with approval at 49%.”)
The link to the Marist poll is provided in the piece, but adding here for simplicity: