Presently, no. 2 million subscribers won't make up the difference. But I'd imagine they're playing the long game. (ESPN+ is less than a year old)
People are dropping cable and satellite all together, thus the drop in ESPN subscribers. They aren't specifically dropping ESPN, it isn't a la carte.
If ESPN keeps adding content that has a following (like the UFC). And more college sports from new conferences (AAC). They can continue making money back from people who didn't want to pay for cable but want sports for $5 a month.