that doesn't really change that it's due to laziness rather than "NA won't like the difficulty"
I don't disagree with that. xd
also, you can most certainly find videos of people solo clearing PD in 2016 in 20 minutes. heck you can even find videos of an organized MPA clearing it in under 5. your comparison is good, but it's hard to draw very large conclusions from such a small sample size, especially for solo runs where you're only measuring one player. this is further muddled by them having episode 4 austeres but not the episode 5 balance changes that we have (i will note, however, that in all cases you can tell it's the EQ version rather than the solo trigger from the ARKS support buff)
Well, you're the one that started comparing the current NA version with JPs UH, but yeah, there's a video of a known top player clearing XH PD solo in 21~ mins back when the lvl cap was still 75.
Anyway, despite the current OP equipment available on NA, what they got now was the weaker original 2015 version of PD, not the 2016 version (though I'm sure the 2016 version will come out in less than 2 months, since it came out on JP right after Yamato).
The biggest problem though is the issue of urgent quests enemies having more HP on SH than on XH (NA SH has lvl 75 enemies in urgent quests instead of lvl 70, they somehow screwed up this change), this is something that they definitely need to look into (though in my opinion, ideally they should increase enemies HP on XH instead of fixing the SH HP).