Yeah, a bit less flexibility, but that has been going away more and more previously as well (ie. pre Apple Silicon).Apple needs offering more variant of combination of CPU/GPU count, memory capacity and band width.
For now, I must go M1 Max to get 64GB of RAM, even I'm sure I'll never ever need 32 GPUs to utilize all that 400Gb of memory band width.
If I were to get new M1 Mac, I'll want a M1 Pro supporting max of 64GB or more; its 14 or 16 GPU cores are more than enough for my work load.
I'm guessing this (or even less options) will be the way going forward. It sucks if you, say, only need the CPU cores and RAM, but not GPU, etc. But, I suppose in general, tying them all together a bit makes sense for most uses. If you're buying a higher end machine, you'll probably want more RAM.