Not at all. In low light/night dives just use your dive light to view the screen.I'm not nitrox certified nor do i think i will be getting that certification any time soon (I mainly vacation with non divers .. this will be an exception so normally limited to 2 to 3 dives a year) so nitrox isn't a primary concern at least for a few years.
Does the lack of a back light on the Veo a serious issue? Does it cause problems in seeing under water?
if you don't dive in these conditions, it is a nonissue anyway. But if you get the oppotumity, do at least one night dive while in Bonaire.
edit. Given the additional dive history from Arsalan Ahmed, I again recommend the simplest and easiest to operate. Less to learn and relearn between dives.