Tbh, it will take them so long to get it ready to launch that we’ll be onto the next government by then and technology may well have made it effectively redundant
as long as the development is done with uk companies and uk staff (and someone with a commercial brain is agreeing the margins) then the spend will be into the uk economy and that element isn’t the end of the world.
just be swept up under ‘government IT waste’ which is a massive amount over the past few decades.