Yeah, I don't really feel the mod is too-strong in any aspect. The ships are very glassy once their shields go down or you go around them.
I'll make an exception for the Miko though. That ship is...quite something. Especially if it has the destroyer-special hullmod, it's near goddamn invincible with its ability to weave in and out of fights and absurd bonus range + flux cost reduction.
The Miko is indeed quite strong, but having used it myself for a decent amount of time. I can point to one weakness. It doesn't have much in the way of sustained damage. There is some spike potential with its spirit weapon, but that takes out of its kiting potential. The special hull mod it has likes weapons with many projectiles like their energy weapon needlers. So it sort of have to rely on the spirit weapon to get through armor. Even the hull mod you can get which increases energy weapon damage to armor by 50% is not enough in an on itself, if you want to challenge cruisers and make use of its special hull mod. The ship itself is very costly for a destroyer. It's like a strange cousin to the hyperion. I'm not saying it's weak. The Miko fights way above its weight class, even if you take the large cruiser-like cost into account. What I'm saying is it's no Excelsior (from the Ship/Weapon Pack 1.15.1 mod).
I didn't know until recently (having played for years), that you could even get that (Excelsior) ship. The ship from the bounty is unsalvageable. Found one with the weakest signal near a planet. The radar wouldn't identify it, even when I was really close to it.
From my experience piloting the Miko I can say it is more of a harrasment and flanking unit. It has been quite weak against fighter wings and masses of fast missiles with good tracking. Sure it can kite away, that just means it didn't get to use its spike damage weapon and most likely only scratched a few shields. It'll have to recharge spirit energy again in the next minute or two before it can strike again effectively. The ai isn't keen on saving spirit energy which means it's not too much of a threat to anything above light cruisers. Keeping your units together and it wont even have much of strike potential.