The new system is good for how it was presented, that is an extra method to take the girls over the single stroke of luck, but in fact the possibility of taking a girl in one stroke, although still present, has been reduced, and this is wrong.
In addition, even the drop rate of the individual pieces is quite low and often we find ourselves doing the 20 games in a row without taking even 1 shard.
I think that the idea of the transparency of showing the percentage of completion is interesting but it should not be the only method because what was frustrating in the last system was the low drop rate but if to implement this new possibility the drop rate is further reduced then the problem is not solved but amplified.
I understand that the idea of the programmers is to earn and that, anyway, a game too easy would not be fun but you should get a balance between the two things and currently, unfortunately, it is not so.
I think that keeping the old system with the old percentage of drop adding the attraction system (putting shards as an additional random reward instead of an alternative to the normal one), and with a higher minimum frequency for the shards would have really made a difference.
Aiming all only on the attraction system drastically reducing the possibility of having 100% in one stroke, instead, I think it was a bad mistake.