Please keep in mind that Microsoft (and Apple) use smaller & lighter components and glue, to save space, weight and cost. Screws are bigger, heavier, and are more expensive during the manufacturing process. Hatches that provide easy component upgrades also add to size and weight, not to mention, potentially, disturbing the "design aesthetic".

Also remember that the companies don't want you to upgrade it easily... If you could remove a screw and double your SSD from 128 to 256, for about $80, how could they get you to pay $200 more for the 256 version (which they make more profit on)?

In the end, easy upgradeability comes with sacrifices in the form of extra size, weight & other design trade-offs. Unfortunately, the market has spoken, and they want thinner, lighter, & "more eligent" devices like the Surface Book.

Until there are enough people willing to vote with their wallets to get upgradeablity over "thinner, lighter & prettier", nothing will change...