Do you REALLY think a magnetic power cable is going to be some widespread problem for users? I think not. Another mountain out of a molehill. People who own higher-end machines tend to handle them carefully.
On its own? No. And let's remember that it is only a dubious rumour that says it is coming to the Mac Mini.
(And it's not the magnetic bit that's the real problem, although that replaces a cheap, standard IEC connector with an expensive proprietary one - it's the management issues of having a cable with a girt great brick halfway down it)
But it is a worrying sign (even just looking at the iMac and ignoring the sketchy Mac Mini rumour) that Apple are still obsessed with form-over-function and proprietary connectors and are going to spend the "power windfall" of Apple Silicon making things even smaller rather than packing more in, so the question is, what's the next thing they are going to cut?
Why can't this sh*t be powered with Macbook Pro 96w charger. Less bricks to produce.
The 24" iMac presumably needs more than 96W since it comes with a newly-designed 143W brick. Probably for the screen.
Any forthcoming M1X/M2 Mac Mini could
probably run off 96W via a Thunderbolt port, since it doesn't have a screen, but if you think about it, a Mini can't run
at all without being plugged in (unlike a Macbook which can run for hours off battery) so that would mean permanently losing one of only maybe 4 TB/USB-C/Display connections just for power. It would be a nice
option if you wanted to power it from a TB3 dock or display (...and a better reason for making the PSU external than making the thing a few mm thinner) but not having a dedicated power input at all would be dumb. It's only marginally less dumb on a laptop, and there are more reliable rumours & leaked specs that Magsafe is coming back to MacBooks as well.
(...and it's pretty obvious that the iMac magnetic connector is too big for a laptop and too strong to break away if the cable is pulled, so it probably won't be the
same connector on the MacBooks).