I glanced at it, saw that according to Guy n Wah VAT would eat 42% of your crowdfunding, blinked at the 42% figure, laughed to myself that a half-decent corporate accountant couldn't find a way to deal with it, (it would depend on how Polish coorporate tax regulations treat crowdfunding, for example) and also thought that paying taxes for a large, or even small, scale corporate entity is rarely simple.
I -can- tell you that here in Canada, as a corporate entity, I'm in a much more "mobile" tax position and that I'm certainly not required to pay taxes on something like KS until said taxes are due. Having a few million infused into my company in terms of advance sales to build a product would be -quite- handy. And I only pay 14% corporate tax on that anyway - if I end up paying anything at all. If I use that money to hire people and secure resources, those are write-offs. If the KS is funding something I couldn't afford to do, then it's a good idea.
Guessing what directors or shareholders will think about it also varies, from how it's presented to how well it does.
Shareholders like things that increase a company's value - if a KS project will do that, or stands a good chance of doing that, they might well be supportive.