There are times that installing macOS requires a trip through Disk Utility, is why. Disk Utility.app is basically made for the single use case of "modify the system to make macOS installable."
The thing to understand, is that everyone inside Apple uses diskutil(8), not Disk Utility.app. diskutil(8) is the "canonical" way to do almost everything related to Disk management on macOS, the same way diskmgmt.msc is on Windows. Everything else is a secondary "convenience" view to just allow certain workflows (like installing macOS without overwriting things, or unlocking a FileVault volume with a master password to install macOS on it) to be accomplished more easily—like the Properties view of a disk drive in Windows.
If there are other "convenience views" of disk management that you think would be helpful, why not make them into an app and sell it? One my favourite macOS programs, DaisyDisk, is basically just such a convenience view. People are willing to buy these—especially as a gift for their "prosumer" friends. Apple can't predict every use-case that a prosumer might want an accelerator for, but the free market probably can.
The thing to understand, is that everyone inside Apple uses diskutil(8), not Disk Utility.app. diskutil(8) is the "canonical" way to do almost everything related to Disk management on macOS, the same way diskmgmt.msc is on Windows. Everything else is a secondary "convenience" view to just allow certain workflows (like installing macOS without overwriting things, or unlocking a FileVault volume with a master password to install macOS on it) to be accomplished more easily—like the Properties view of a disk drive in Windows.
If there are other "convenience views" of disk management that you think would be helpful, why not make them into an app and sell it? One my favourite macOS programs, DaisyDisk, is basically just such a convenience view. People are willing to buy these—especially as a gift for their "prosumer" friends. Apple can't predict every use-case that a prosumer might want an accelerator for, but the free market probably can.