Wouldn't it be very easy to adjust this monster to be a mid-paragon level threat, if that's how you wanted to use them? Say you want the Swordwing to be a level 15 Soldier:
Swordwing
Level 15 Soldier
Medium aberrant humanoid
XP ?
Initiative +16 Senses Perception +13; low-light vision
HP 154; Bloodied 77
AC 32; Fortitude 30, Reflex 28, Will 22
Speed 6, fly 10 (hover)
Armblade (standard; at-will)
Reach 2; +20 vs. AC (+22 against a bloodied target); 2d6 + 4 damage (crit 2d6 + 16), and the target is marked until the end of the swordwing’s next turn; see also vicious opportunist.
Sudden Strike (immediate reaction, when an adjacent enemy shifts; at-will)
The swordwing makes a melee basic attack against the enemy. The attack deals an extra 2d6 damage if it hits.
Vicious Opportunist
The swordwing’s opportunity attacks deal an extra 2d6 damage.
Alignment Evil
Languages Deep Speech
Skills Endurance +20, Stealth +19
Str 28 (+16)
Dex 24 (+14)
Wis 13 (+9)
Con 26 (+15)
Int 10 (+7)
Cha 10 (+7)
Takes about a minute to make the adjustments, and another minute to compare to another level 15 soldier and think it through to make sure there isn't an ability 15th level characters would not be able to handle. Comparing it to the Level 14 Soldier Boneclaw, you see most things are comparable.
I think they said it's not advisable to make adjustments for more than 5 levels, but on a simple monster like this, there can't be too much harm. If in doubt, use one less swordwing than an encounter would call for.
And if you don't like how the monster looks, clip the wings, give them innate flight, orange skin, beefier muscles, and have them wielding jeweled weapons, wearing crowns, necklaces, and bracers, and give them a different name like Eternal Gypsies. So in all of 5 minutes, you turned a page in the monster manual you didn't like, into your next encounter. I think with simple monsters like these, we'll have a lot more flexibility to fill in ranks of soldiers and skirmishers as needed. I could easily add two of these as guardians to some evil Efreet lord.
Swordwing
Level 15 Soldier
Medium aberrant humanoid
XP ?
Initiative +16 Senses Perception +13; low-light vision
HP 154; Bloodied 77
AC 32; Fortitude 30, Reflex 28, Will 22
Speed 6, fly 10 (hover)

Reach 2; +20 vs. AC (+22 against a bloodied target); 2d6 + 4 damage (crit 2d6 + 16), and the target is marked until the end of the swordwing’s next turn; see also vicious opportunist.

The swordwing makes a melee basic attack against the enemy. The attack deals an extra 2d6 damage if it hits.
Vicious Opportunist
The swordwing’s opportunity attacks deal an extra 2d6 damage.
Alignment Evil
Languages Deep Speech
Skills Endurance +20, Stealth +19
Str 28 (+16)
Dex 24 (+14)
Wis 13 (+9)
Con 26 (+15)
Int 10 (+7)
Cha 10 (+7)
Takes about a minute to make the adjustments, and another minute to compare to another level 15 soldier and think it through to make sure there isn't an ability 15th level characters would not be able to handle. Comparing it to the Level 14 Soldier Boneclaw, you see most things are comparable.
I think they said it's not advisable to make adjustments for more than 5 levels, but on a simple monster like this, there can't be too much harm. If in doubt, use one less swordwing than an encounter would call for.
And if you don't like how the monster looks, clip the wings, give them innate flight, orange skin, beefier muscles, and have them wielding jeweled weapons, wearing crowns, necklaces, and bracers, and give them a different name like Eternal Gypsies. So in all of 5 minutes, you turned a page in the monster manual you didn't like, into your next encounter. I think with simple monsters like these, we'll have a lot more flexibility to fill in ranks of soldiers and skirmishers as needed. I could easily add two of these as guardians to some evil Efreet lord.