Technically, when one gives to a dedicated project such as this one the IRS does NOT allow donors to request that monies be used for that project.
All honest churches of course honor the donors wishes. If I write “Blood Water Missions” on a donation envelope, my church would never send it over to the building fund.
OTOH, I technically have no say in how the church spends the money that it receives, from tithes or these special offerings. IRS rules for 503(c) charities.
Not that anyone (IRS, DOJ) would ever investigate the NCC / WCC charities for the missing $2.6 million that they admit to.