Tool-less is important for generic consumer hardware. Ideally, you would say it should be toolless for all consumer hardware, but a laptop computer explains us why that is not a good idea for a mobile, mission critical device. Smartphones are handled even more carelessly, since they are hand sized devices, and their connectivity utility is mission critical.
Laptops and mobiles probably should not be toolless, but rely either on the mechanical latches or screws or a simple glue like T-3000 or T-7000. The current system, as far as devices themselves go, is not too horrible. There are exceptions like Apple, newest Pixel 6 series and so on, but midrange phones are decently repairable. Same goes for ThinkPads, but there are a lot of problematic practices among other laptop makers, especially Apple. What is bad is the unconditional availability of either company genuine batteries or good third party batteries.