Historically, the trends followed the hardware, which shaped tastes by geography and availability, and also the capabilities of that hardware. In the 8-bit era, different platforms reigned in different areas. The Apple II dominated the USA (and here in Australia) but it was considered too expensive in the UK, which had homegrown cheaper, lower-RAM computers like the ZX series and BBC, and where tapes and not disk drives remained the dominant storage medium for longer. The C64 was the only platform that presented strongly everywhere, and its disk drive was appalling (30 times slower than the Apple’s). So that World of Spectrum list is representative of the UK and European experience, including single-load tape games like Twin Kingdom Valley, and then for more advanced games, the list is big on Level 9. Infocom didn’t release games on the Spectrum.
Scott Adams’s first games were designed for absolutely minimum RAM on the TRS-80, so they were rare in being American games that suited the early UK environment, and he had distributors over there. (That last bit I learned on The Retro Adventurers podcast, which shored up pretty much all I’m talking about here, in my brain.) Infocom were already off and running in the USA starting with Zork I on the Apple II. So the first seeds planted in each region were different and there were whole areas of no overlap. Today, there are no technical reasons for non-overlap, just historical ones plus the fact IF is niche 
-Wade