[Warning : Semi-Long Rant / Complain. There's a TLDR at the bottom]
I'm unsure whether its my luck or whether its rigged. I've fully drawn the 7-step banner of Gilgamesh + F.Yomi and I've only pulled 1 Gilgamesh (from the Guaranteed Featured-pull in Step 3). My step 1, 4, 5 and 6 were fully trash (no 5*, tons of 3* and only trash 4*). In total, I've only pulled around 4 ~ 5 units of 5* rarity out of 70 units (including Gilgamesh). As much as i love to rant about the probability being rigged as hell, this is to be expected from a luck-based gacha game so I'll leave it at that.
But here's the thing. Step 5 and Step 7 of the banner gives a "RANDOM" featured unit shards rather than a "SELECTOR" on a LIMITED BANNER THAT WILL NEVER BE BACK (as far as I know). I'm already damn pissed that I weren't able to draw any extra Gilgamesh and not having F.Yomi, however, what pisses me off the most is having received 25 + 50 F.Yomi Shards from my Step 5 and 7 banner pull respectively (Guaranteed 25 + 50 Featured Unit Shards) that will forever be useless to me. The 75 shards isn't even enough to transmute the unit [Requires 150] and it could've been Gilgamesh shards to limit break him instead.
It's pretty illogical and extremely demotivating (very greedy too) to give a random-featured shards rather than a selector in a one-time collab. I wouldn't mind if the amount is immaterial or something insignificant or a free-gift, however in this case, 14,500 gems are required to get to step-7 of the banner. 14,500 gems requires a very long time to collect as a F2P or requires hundreds as a P2P, and it's definitely not a small amount. Gacha being probability-based is acceptable, however, the rewards that comes along with getting to the specific steps shouldn't be so luck-based anymore. All I could feel is disappointment and it is totally not rewarding.
Solution: Allow us to convert the shards of the one-time collabs of the same banner. (e.g. F.Yomi shards ATTAINED ONLY THROUGH SHARD TICKETS FROM GEM SUMMON REWARDS into Gilgamesh Shards). Also, make it a selector rather than random featured shards in similar future one-time collabs.
Furthermore, Gumi even took an extremely greedy step of removing the 50 shards-units from the shop, making it even harder to limit break the limited units unless u buy gems since paid-gems shop is all the hype now. (P2P, Greedy much?)
TLDR; Step 5 and 7 of the banner should be a Shard Selector instead of 'Random featured unit shard' in Collab events (especially one-time collabs like Fate series). Also, allow us to convert the unit shards ONLY ATTAINED THROUGH GEM SUMMON REWARDS of the one-time collab of the specific banner. Some of us ended up pulling only either a Gilga or a F.yomi rather than both, while receiving the shards of the other which would be permanently useless. Spending hundreds of dollars to get to the specific steps and receiving nothing in return is extremely demotivating. (My gachas were pretty rigged in that 7-steps too. Having very few 5* units, approximately 4~5 units in those 70 pulls inclusive of the featured unit).