Many ico here exist by giving the advantage to decentralize something, if you want the centralized one, you should simply go to some company that provide the same product in the same category.
and by the way, such project that's centralized often make an initial public offering.
the thing is that these decentralize part of ICO adds too much risk to it, not giving normal investors the chance to invest in products that suit their risk profile. hence im looking if theres an exchange that is a bit more centralised in nature..