Implementing blockchain technology in all those apps could be okay. The world is advancing and blockchain technology is one of those which permits advancement. However, people will still hold on to what they are used to. It might take several years before people abandon their facebook and twitter accounts for steemit or akasha. People won't easily trust storj and IPFS their important files. There will still be hesitations and those fresh apps that are blockchain-based still needs more publicity. Not all people knows this forum nor this technology. It will take time before people fully adapt this kind of advancement.