So a Russian-based anti-virus company is writing a new industrial control O/S from scratch and then expecting oil/utility/manufacturing companies to use it? Not to sound negative but I give this as much chance as the proverbial snowball in hell.
Do you mean that it would be too much of an engineering burden, or that they wouldn't trust Kaspersky?
In any case, such a thing could become mandatory one day, if the so-called "cyber war" on oil/utility/manufacturing continues.