It really is not an issue for me actually. macOS has some quirks, all operating systems have their quirks. The fact that chess is an immutable part of the opsys is just one of them.
Here's another use case for finder-accessing the /applications folder: Creating aliases. I keep a folder on my desktop called 'Network'. It contains some app aliases to network utilities like LanScan, WiFi Explorer and Speed Test. It also contains web links to router management GUIs, printer GUI, NAS GUI, and a VNC link to share the screen of the other Mac on the network.
I find this very handy when the network is down and/or being reconfigured. Double click and I've got them all there. I do also group the network utility apps in Launchpad but mainly to be tidy.