I'm not sure if that is even a Spiritbonding set.

Let's take a look at what this gear probably is:

Thyrus Atma/Animus: i100 weapon, essential for not being utterly useless when spiritbinding.
Legionary Visor: Not even convertable. Why would you even spiritbind this?
Crafting/Gathering Doublet(?): A chest piece with no Mind or Vitality? This person is an idiot.
Daystar Gloves: Okay, something useful.
Demagogue Rope Belt(?): Not convertable.
Pants: I'm not positive of their identity. If they are Warlock's Tights, they are not convertable. If they are Harlequin Tights, they are convertable.
Aetherial Shoes?: Those things appear to be i40 Aetherial Boreskin Crakows. Wow.
Choker: At first glance, this appears to be a Mythril Gorget or Choker... and neither of them have Mind.
Daystar Earring: Or is it Evenstar? I'll give it the benefit of the doubt.
Aetherial Wristlet: These are probably lower than i40, but we can hope that they're i45 Aetherial Electrum Wristlets.
Rings: Let's just hope that they're both Mind accessories.

Conclusions

1. Even if we assume i100 for all Soldiery items and the highest possible iLvl of unknown slots, the average item level of this character is 65 or 66. If we assume that Soldiery items are i110, it's 68. They switched to this set after entering the instance.
2. Of all of their equipment, only 4 items are guaranteed to be convertable and one other may or may not be.

So, this person was not attempting to spiritbind in any significant fashion. This is a troll, pure and simple. Kicking is the correct choice when you see something this inane.

How to Spiritbind in Instances Without Pissing Off Everyone and Their Mother

1. Only ever spiritbind Accessories in dungeons.
2. Never spiritbind Accessories that don't contain your main stat(ie. MNK binding Dex accessories. Don't do it).
3. If someone gets nervous and asks you to put your "actual" gear on, just do it.
4. Never use a set that is a lower iLvl than the dungeon requirement. That requirement is there for a reason.
5. Switch to your better gear for every boss fight.
6. Just to add to point number 2, never ever ever spiritbind gathering/crafting gear in a dungeon.