No lol. Kara Eastman lost because it's a moderate suburban district, not urban NYC, and not because the DNC "abandoned" her. He certainly could lose, but I expect him to win by 2-3.
No, it was legitimately the fault of the DCCC triaging her early on. This can be seen by the fact that she still did as well as any candidate could: she only lost by 2%, & pulled a higher vote share than in 2016, when the moderate incumbent - who couldn't even win the primary 2 years later - also lost.
Shouldn't have mattered. If Kendra Horn was winning by double digits in a seat 3 points to it's left without much struggle, Eastman should have been able to win with or without the DCCC
