I'm curious if this will also bring lending to Binance. They don't have lending yet, isn't it? With that they'll cover basically all the features of the other exchanges.
Certainly, margin trading is a matter of lending. A margin trader who's going to do margin trading need a lender which is another user that can supply what he needs. This will benefit both users as both of them will take profit (only if a margen trader took advantage of the market).
Some margin traders for example in Poloniex doesn't shift to Binance because of the margin trading feature. Through this Binance update, those traders might shift to Binance which will bring them to a greater success. It's good thing that Binance have already consider adding it to their platform.