The need will certainly decrease over time--probably to a greater degree than HDMI and SD. But in the meantime it will be a minor inconvenience now and then.
On my desktop... I have 4-6 USB-A devices plugged in at any given moment.
If I was buying a Macbook Pro for work, it would absolutely be getting a Thunderbolt 4 compatible dock, full of all the port goodness I needed.
That's not a big issue, IMO. Dongles are fine.
Unfortunately, we are still very bad ad recycling e-waste and only a part of it can be recovered successfully. As choosing the date has huge impact on the environment, a company that truly cares would take it into account.
And you think they haven't because it doesn't align with when you want to move on. You are not the only user in the world.
I have a single item that uses USB A (my mouse). I plug it into a dock that I would have purchased anyway to handle multiple monitors, and that resolves my waste issues. YMMV.