More veins does not equate to being better in shape - vascularity is genetic and as long as you've got the cuts to back up the mass then there shouldn't be a problem. It was never a problem for Flex.
The thing is, you would wonder how his skin is thin enough to show striations in his quads he would have some vasculature.
I wonder if he is so dry (aka vascularly depleted) that is veins are flat. Could it be an indicator of lasix use?
Flex had no veins either, and we know what happened to his kidneys.