Apple is notorious for this as well. That's why I prefer a PC over anything else: in most cases, you just pop the cover open and all the hardware is there in front of your eyes.
A standard laptop has far more accessibility than the Surface shown here...why didn't the manufacturer consider this? Do they think people are that stupid or something? I don't need an expensive tech for basic repairs and I certainly don't need another headache lying around the place.
Believe it or not most consumers don't care about repairablity or being able to upgrade parts on most products.
Most consumers on average keep their computers for ~5 years, never upgrading the parts or having it opened for repair.
Tablets are kept about ~4 years
Phones and handhelds are ~2 years
Etc...
Consumers hate weight, bulk and moveable parts in their products.
Companies are lucky to breakeven on selling most replacement parts!
The profits and market share are in selling you the complete unit.
Literally GM makes almost nothing selling car parts.
Dell and HP make practically nothing selling parts for their products or their PCs. The profit margins are that thin on PCs and servers.
The list goes on.
Hell Microsoft makes no profits on almost all of their hardware including surface and Xbox.
Actually most PCs, tablets, phones, TVs, Blu-ray players, and most other consumer electronics are sold at a loss or at a very thin profit margins. Very few companies make good profits (mainly Apple and Samsung). It's that cutthroat of an industry.
Add this on top of consumers wanting ever more features and ever smaller/ lighter form factors, at ever cheaper prices causing the products become ever more complex and expensive to manufacture.
Let's not forget how expensive it is to do the logistics and shipping of the parts and products around the world (it is quite expensive)
The point is there is practically no profit or consumer goodwill gained from making parts to repair products.
Hell when I broke my 6s+ screen, Apple replaced the screen for a charge (it was my fault). When the home button broke because of the screen replacement, Apple gave me a new replacement iPhone of the model I had.
This was done to it being that much cheaper for them then having to go the repair process