That is not sad, to be honest. If a coin needs to scale, that means adoption is successful. If a coin never needs to scale, then we need to worry because no one is using it. Investors have always been confident in Bitcoin. It is the speculators and those looking for quick bucks that quickly move away to alts like Bitcoin Cash because they do not see the big picture (adoption, mainstream use, security, decentralization etc.). Lightning Network and Segwit are fixing Bitcoin's issues, not to mention other developments on the way.
Lightning network is really solve the problem of slow transaction in bitcoin which become most issue appear in bitcoin.
But for segwit, its nothing for me. Segwit is not sloving any issue but seems like the developer want to gain money.