why doesn't the vectorization work?

I think that vectorization of code is the greatest thing in MATLAB. There is a one step to overcome limitations of vectorization is to allow this syntax:

((:,:,:),(:,:,:),(:,:,:))

that means the same as

(:,:,:)

but executed consequently from left to right.

Will this vectorization ever be supported?

[Sean de Wolski]

I don't understand what you want - though it sounds more like an enhancement request type question. Perhaps you could show a (small) example of what you want (inputs/ops/outputs)?

[Walter Roberson]

MATLAB already executes from left to right, except as modified by () or operator precedence.

I do not understand what is being asked. I get a bit of an impression that it might be like a built-in ndgrid()

[the cyclist]

I assumed that what he wanted was more like Walters' top-voted enhancement here: http://www.mathworks.com/matlabcentral/answers/1325-what-is-missing-from-matlab

[Walter Roberson]

say, I think you might be right, cyclist!

[Walter Roberson]

Your edit doesn't seem to provide any additional information. As Sean asked, please show a small example of how it might look and what the desired output would be.