I’m gonna be really annoyed if I end up losing the convenience of being able to charge my MBP just plugging it into my display.
If the USB-C/TB3 ports no longer support PD to charge the laptop, you'd then have to connect the TB3 for data, and MagSafe for power.
I'm healthily skeptical about the chances of MagSafe coming back - but if it did, there's absolutely no reason to presume that it would be at the expense of TB3 charging. If you can make a Mac with 4 possible charging ports (split between 2 TB3 controllers) you can make a Mac with 5 without changing the laws of physics. Breaking compatibility with existing displays & hubs with charging capacity wouldn't be the stupidest thing that Apple has done, but it would make the shortlist - yet there are people here trotting out this total red herring (hmm... can fish trot?) as a criticism of MagSafe.
Last time Magsafe was in use on Macs, charging a Mac via Thunderbolt 1/2 or USB-A simply wasn't an option.
Newsflash2: you aren't the only user of laptops on the planet.
Nor are you.
Guess what: some people like having single-function connectors rather than wasting their limited supply of fast data/external display ports on simple charging. Others either don't use data ports much on the road, or have a dock or TB display on every desk... I don't know why people are pretending that those two needs are somehow mutually exclusive: if Apple did resurrect MagSafe, nobody would be
forced to use it (unless Apple were epically stupid and removed USB-C charging)... but nobody can use something that isn't there. Plenty of space on a non-Air MacBook for Magsafe + 4 TB3 ports.
Sure, you can get magnetic break-aways for USB-C, but that involves sacrificing a USB-C port for power... because there is a
reason that MagSafe makes sense as a power-only port: (a) it's the thing that you're most likely to have trailing across the floor to an inconveniently-placed wall socket when you're away from the desk and (b) laptops have batteries, so there's no immediate damage done by suddenly yanking the power. You
really don't want that happening to your external hard drive/SSD (...and if
that is on the floor on the other side of the room, you're holding it wrong).
Also, the article is talking about the possibility of
faster charging - i.e. higher current and/or voltage than is supported by TB3/USB-C - which would be another reason for having a non-TB3 charging port.
Pretty much every laptop I've ever owned has had at least one port that I, personally, had no use for. I try not to let that keep me awake at nights unless it comes at the expense other ports I do use/need, because I get that, for other people, it
is useful.
Trouble is, USB-C
does come at the expense of other ports, because a fully-functional USB-C/TB3/4 port requires expensive PCIe and DisplayPort lanes, even if you plug in a device that barely needs USB2.