This is due to the convenience that USB-C offers where you can connect a monitor to the laptop and charge it at the same time with a single cable. However, there is some good news because it looks like despite killing off MagSafe, Apple is continuing to research magnetic cables for charging.
This is according to a recently discovered patent for “Smart Charging Systems for Portable Electronic Devices” that describes a system that uses magnets in cables to prevent damage if they get tugged on. According to Apple, “The smart charging system includes a magnetized connector and a charging component that can be configured to dynamically attract and repel the connector to and from the portable electronic device.”
Of course, there’s no way to confirm if Apple will actually make this a reality. However, it is heartening to see that Apple hasn’t completely given up on MagSafe yet, but when exactly we will see it implemented remains to be seen.