I'm interested here in the question of whether it's better to try and continue takeoff rather than reject.
Given they had probably 3000m+ of runway left is it really a good idea to try and force the thing into the air, when you don't have any real idea why it isn't flying? Yes if it's a short runway then you may have no option, but with that much runway remaining, a rejected takeoff needn't even be aggressive.
I'm always slightly perplexed by the way in which rejected take-offs are talked about as extremely risky manouvers, anywhere above 100 knots. Especially if you're in a narrowbody, and have a lot of runway left, what's the big deal? Think about high altitude airports, the same planes are routinely landing at ground speeds of 170+ knots and it's no big deal.