I think the annoyance comes from not having that many ports to begin with. If I had a whole bunch of ports, it wouldn't matter as much if I had to snap on a usb-c adapter to all the cables.
What is annoying is having to unplug something i need so I can plug in a flash drive
yeah i have a few of them and they all get extremely hot, plus they look ugly as hell. usually a super short cord so right where my mouse would be is a blazing hot ugly box with a bunch of cables and junk sticking out. and if you accidentally jiggle it or move the laptop too much the whole thing blanks out for a second interrupting work flow.
They have many options depending on your needs. If you want it to charge your laptop through the dock / hub, ensure that it has power pass through functionality.
Some of both. I remember a time where it felt like every time I got a new computer it had some different ports because they kept evolving. Modem/Ethernet, firewire 400/800, keyboard/mouse/USB, VGA/DVI/Displsyport(and mini versions of some). Sure, my old computer might have had a lot of different ports, but I might never have used some of them. For something like a laptop, I think 2x USB-C on each side is good for most, plus add hubbing to larger peripherals like HDD enclosures and displays and docks wouldn’t have to be so popular.
I feel like we’re just in the middle of a good transition period. Few years from now almost everything that can will be USB-C, we’re really just waiting out the replacement of all the existing devices and their incompatible ports.