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For just weight loss, probably. But if you've got a limited amount of time you're best bet is to ride for that time as hard as you can. If taking on carbs allows you to ride it harder then do that.
Also you've not taken into account EPOC (https://en.wikipedia.org/wiki/Excess_post-exercise_oxygen_consumption) with the VO2 max intervals workout.
hippy
I'm not a coach but... I use trainerroad and 1hr at low intensity (65-75% of ftp) burns pretty much the same number of calories as a series of 5 VO2 max intervals over a 1 hr workout.
However the low intensity one can be done fasted and more regularly so if weight loss was your only goal I would go for lower intensity fasted rides.