I don't think these reasons are very persuasive, as everything but 5 has been true at different times in the past. Obviously it's much more people, more dollars, and more impressive systems (but slower hardware progress), but I hope you see what I'm getting at.
And of course there's differences in what someone considers to be soon. Many AI x-risk believers think there's a ~50% chance of AGI before 2031 (https://www.metaculus.com/questions/5121/date-of-artificial-...) (I've heard this prediction site's userbase tends towards futurists/techno-optimists/AI x-riskers). I would consider that soon, I wouldn't consider 2054 soon.
And of course there's differences in what someone considers to be soon. Many AI x-risk believers think there's a ~50% chance of AGI before 2031 (https://www.metaculus.com/questions/5121/date-of-artificial-...) (I've heard this prediction site's userbase tends towards futurists/techno-optimists/AI x-riskers). I would consider that soon, I wouldn't consider 2054 soon.