Definitely massive. Never played it because I assume it's too micro transaction focused but even more reason to believe they should have the cash to pay their talent
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.