Lately, I noticed the ones that ask for lineups for ninjas they got from events (mission boxes, lucky packs, lucky stars) are players that didn't have any good lineups to begin with and/or don't use any present or past playable metas. You would think that players who got these ninjas before the insane number of reports for the past few months would use them in their main lineups but no they don't. The only ninja I see sometimes in lineups is Tendo but he's meant for 3v3 unless you have an insane amount of power compared to others,

The main point is that the current ninjas we get in packs are viewed as (going to quote OP) "useless" since they don't fit with the meta and can be thrown into packs since it won't hurt the dynamic of the competitive game play of pvp. Also, Hokage is still relatively out of reach for the common f2p because of the price in coupons is high but it's great OAS stopped making her an ingot exclusive.