I don't really care if I ever get an i280 weapon or not, but simply the fact that they exist for the 'lucky few' is a massive slap in the face to anyone who put the effort into getting the Anima / Raid weapons. The timing is also terrible, with most other high-end content still under weekly lockout, speed-run groups still doing content before Echo nerfs, and the Gobdip (i260 -> i270) not even widely available yet.

I understand the Devs desire to get people to do the Diadem (they've waste enough resources on it :/) and offer 'good rewards', but there are lots of ways they could have done that including making the Diadem a great place to progress Anima weapons. Lockboxes / Gathering nodes could have dropped Anima mats, FATES could have given extra Light etc.

Yoshi-P gave a big apology for Diadem not making into in 3.55a... I look forward to the bigger apology now that it has been released.