I can see it both ways.

I remember the Amiga always being compared to other "16-bit" machines, like the Apple IIgs, Atari ST, and early Macs.

I also remember the 68000 being referred to as 16/32-bit. Still, from a programmer perspective, the 68000 looked like a 32-bit machine, similar to what Intel did with the 386DX and SX.