I am not a fan of the history in that article at all. The video game crash of 1983 was not like some huge media event plastered all over TV here. I didn't know it was a thing until decades later. I got a C64 that year and there was no shortage of new games coming out for it regularly. 1983-1986 saw a ton of C64 games come out. I started High School in 1983 so it was a great place to find tons of new games and countless people to trade with.
As for the Amiga, it was never ever an issue finding games. Most of what Shot says above is probably closer to reality. There was no shortage of games or peripherals in the USA market. If it was such a dog here in the USA why were there so many US based companies making hardware for the Amiga? There was also no shortage of places selling Amiga stuff, at least in my small area. I don't get it.
The article mentions buying a PAL A1200 and a step up converter. That is all pointless. First you don't need a Euro PSU if you buy a PAL Amiga. Any US power supply will work.
Second an NTSC A1200 can boot into PAL mode very easily from the early startup menu. Same with a PAL A1200 it can boot into NTSC mode. There are also boot disks for PAL games that put your A500 or A2000 into a mode that can support PAL for the games that are actually not available in NTSC land and I don't believe for a second it is 90% of games.
For the first few years of its life the Amiga was supported by mostly American game publishers. EA, Access, Accolade, SSI, Epyx, Cinemaware, Origin, Activision, Maxis, New World, Interplay, Sublogic, Microprose, Broderbund, Sierra just to name a small fraction of companies that were making software for the Amiga in the USA. There were also several companies that published PAL games to the US market, including EA, Mindscape, Advantage, Psygnosis and others. If it was such a terrible market why would they bother? I am betting it wasn't as bad as revisionists today say it was. In the past I have read that they only sold somewhere around 400,000 Amigas in North America for ALL models. Total and utter garbage. IIRC the Amiga 500 alone was touted to have sold in the millions. Are all these companies really going to pop-up for such a limited market as they say the North American market was? I don't buy it.
PAL mode is really more useful for demos, in my opinion, since most demos on the Amiga were written in PAL lands.