The issue with Netflix is they don't have a real studio system like other streamers, hence they have to buy up their content to keep up/ahead which ends up costing more and more.
Disney doesn't have that issue, so their studio system can feed D+ just like it has for linear for decades. As linear investment fades, and it is and will continue, D+ will get the primary content spend without much overall increases to the bottom line. Its the short term pains of feeding both that just have to be gotten through, but the days of profitability for D+ are fast approaching.