Multisend option has sense. Especially for such things as signature campaigns. They have like 20-100 participants and now instead of to send money to everybody at once the manager has to send payment one by one. I faced this kind of problem like two weeks ago when Blockchain.info removed this option and I was waiting 5 (!) days to get payment. It maybe ok for those to whom such payment's don't play any big role, but I am unemployed and I live with this money.
Blockchain was mostly used for their multisend feature only while now all have moved to electrum and have stopped using blockchain. They shouldn't have stopped it when the network fee is increasing with the price and people need to save on fees when sending coins in batches. This dynamic fee is nothing new as they let us set a fee earlier as well in the Advanced option.