It is certainly no coincidence. No, you are not the only one to notice it.
This B52 trend was started by George Robbins (RIP), with the A500. The working title of the A500 was 'B52'. George's moniker on the motherboard is 'Grr'.
The A600 motherboard has 'Junebug' on it, the A1200 'Channel Z'.
The CD32 has 'Spellbound', a song by Siouxsie and the Banshees. Thus, George didn't work on the CD32.