Thankfully KR player touched on this, if you want more details you can view one of these:
1. Interview with top KR player who spent only $800k on Lost Ark and played it all right and left for years:
https://youtu.be/_8_kHtaXy8o?t=2858
2. Podcast interview with few seasoned LA players:
https://youtu.be/s0BxYi5Qftw?t=5509
Now as the guy in 2nd interview says - it's down to your interpretation, but ultimately you can buy ilvl with $$ and in a more direct way than with WoW Token, for example.
Now, I personally actually don't mind P2W
much - if there is a game I want to down $1k into - I do it, but I do think it's important to not delude yourself on what kind of "gaming" it is.
Sure, we don't really have all the finest details of how Amazon will implement it in the end, but given royal crystals exist and they can be turned into blue crystals, which can be then traded for gold - it's safe to say Amazon version at the very least will have that one source of gold for $$ and thus direct power for $$. Now what could happen is that maybe rates for upgrades and such will be different to make whaling unfeasible, but this all truly remains to be seen because beta had a fraction of stuff with dysfunctional economy and everyone loaded with $$ currency.
So it's better to keep that in mind and not that copium guy, just because game is fun otherwise.