It could be that more people are upset at lootboxes being in a single player game. Some people are also upset at true ending and the fact that you can use the LB as shortcuts to the grind. So it is not identical.
Alot of the implementations that get people upset recently are very different and have different demands on time and different subjective worth.
I have played the alpha and the beta of battlefront 2 and it is not as bad as it seems because of the speed in which you can get money and perks, in addition to challenges completed. If they change it to be slower in full game then it would really suck. The first one was an absolute slog to get the money and perks despite the mobile game and other features to help you out. There is a balance that this game is really close too. I hope EA doesn't go to far like how they treated BF4.
Core principle of implementation is identical. You have option to either play / grind it out
or use to shortcut the system and purchase power
(cards, orcs, swords, blaster... doesn't matter, power is power) hence skipping the playing part.
In both cases you can argue that LB's are there just so player(s) can save time by investing more into the system, but still paying for power is paying for power and you are skipping part where you grind / farm / whatever for said power.
Also like Hamnik pointed out later on this thread (after your post) crate content and loot quality distribution seen in Battlefront 2 beta is just for that, beta. Values are subject to change by release and if they have to point it out like that within the client sensible conclusion is that they are considering making grind... well grindier.
Hamniks post:
http://www.neogaf.com/forum/showpost.php?p=251119805&postcount=374
Well it affects the gameplay experience when you don't purchase the microtransactions:
http://www.neogaf.com/forum/showthread.php?t=1443533
Just like not purchasing loot boxes in Battlefront 2 will directly affect your gameplay experience. You actually need to grind until your knuckles bleed in order to get those legendary and epic cards of power. Alternatively you can throw out some and shortcut the system, just like in Shadow of War. Both game are pure garbage in that aspect, selling direct power to player.
At least in case of Shadow of War multiple reviewers have came out to say that if you bother to maintain your army through the game etc. grind in last Act isn't as huge deal as some make it out to be.
Maybe that will apply to Battlefront 2 too.