Obviously, it's always worth seeing what can be done to reduce the cost of a project. That's just sensible.
However, whatever the difference might be between using concrete and steel, or using different external finishes, or different contractors, surely the relevant point is that the finances are so tight on this that saving a few million here and there, even if it adds up to (lets say) £20m, or even slightly more, has come to be essential for the stand even to proceed?
It just underlines how delicate the balancing act is, and that this is a case of the club spending its own money to the detriment of the playing budget, and borrowing a lot more on top.
In other words, the argument that there is no option but to build the stand, that any explanation for it stalling is just 'excuses', and that the sooner we build it the better off we will be are demonstrably incorrect. If that were the case then there would be no need for such detailed scrutiny and caution.
Furthermore, it all shows very clearly that the owners are absolutely not paying for it at all. They might be mega-rich, but that is irrelevant.