It’s literally the first sentence in the article.
You posted the article but didn’t read it?
“You exist because we allow it, and you will end because we demand it.”
Probably why he is suing for damages now instead of access.
As someone who does actually play it - it’s only microtransaction focused if you get FOMO and like to collect all playable characters.
Usually you can guarantee a new high rarity unit once every two months or so of playing, but the real endgame is just exploring and there is no need to pay anything ever.
The logic is sound, because I (and assumingly others) found it interesting, but please try to read an article before sharing it.