Don't know what you intend "artificial" to mean.
Every maker targets products for certain customers.
The current iMac is not targeted towards power users. It is more closely aligned in the spirit of the original iMac.
Same with the Mac Mini, or the MBA. The base Mini is aimed for someone who wants a simple computer to plug into some need. The MBA is aimed for someone who needs a basic laptop.
Apple offers multiple products for people who need more computing resources than base offerings of the iMac or MBA or Mac Mini offer. If you need more, buy more.
Why didn't I think of that?! Just... throw in enough money to buy what you need!
Great. So if you have a 27 inch iMac and want to upgrade the solution is to either accept significant form and performance compromises, or pay Apple's outrageous prices. $1700 USD for just the 27 display already costs more than the present generation iMac... and you haven't even bought the computer yet! Now to match the RAM specs of the last generation intel iMac you'd need to buy an Apple studio. Upgraded to 128 GB that demands $4800 USD. Now you've got your replacement pro level 'iMac' coming in at $6500 USD.
Now let's wind the clocks back to 2019 where I could buy a 27 inch iMac for around $2000 USD and upgrade the RAM and storage myself for around $400 extra, bringing that to $2400. Inflation adjusted that's about $2800 in today's dollars.
So your answer is to simply not consider money an obstacle and just buy whatever Apple product you want for whatever Apple charges. Under those conditions I'll concede, now please tell me where I can find an extra $3700 USD where I don't have to sacrifice hundreds of hours more of time in order to make up for the deficit?
Edit: Now I'll admit the upgrade from 20 to 24 inch base model is impressive, but Apple has effectively neutered the higher-end iMac line in order to ensure pro users are forced to buy vastly more expensive options. Even the mini used to offer RAM and storage upgrades which have long since been removed for the specific purpose of price gouging on upgrades. These units aren't lacking for space and weight isn't an obstacle! A base mini has lots of empty space which easily could be used for modular SSD's. However when Apple charges $800 to upgrade from 256 GB to 2 TB of storage which can't be upgraded, why would they do something sensible like put in upgradable SSD modules? 2 TB SSD modules come in around $100 USD and Apple knows they can't gouge customers if we can simply install SSD's ourselves.