The biggest issue with Neural Link is it is not actually piloting two ships simultaneously. It's piloting two ships sequentially, with the other one always under AI control. Which leads to a host of mini-problems with trying to do tightly aligned maneuvers. Also jumping between high DP cost ships definitely feels sequential. The way Neural Link is weakened out of the gate makes the assumption that player control of 2 ships is much better than AI control. Hence the Tier 5, OP hullmod cost, and not carrying over to other ships if one gets blown up. But since Neural Link doesn't actually give you control of 2 ships, it feels way over priced to me.
Even switching to the other side of the battlefield is highly situational. And encourages a typically bad battle plan, which is splitting your forces instead of focusing.
In terms of officers it is also possible to be a trap choice, since if you don't go heavily into combat skills, the spare officer can theoretically be worse than an AI officer (an AI officer I might add that you can't seem to change the aggressiveness of), on top of OP costs which weaken the 2nd ship further, on top of 2 skills losing half effectiveness (Combat Endurance and Missile Specialization).
I've for example tried it with an Afflictor/Onslaught pair. Run in with Afflictor, drop Entropy Amplifier, switch to Onslaught, drop 4 point blank Reapers.
But it doesn't work out that way. If you run with the Afflictor, the Onslaught is out of position. So you switch to the Onslaught, and now the way too fast Afflictor is out of position. You can't precisely control two ships simultaneously because the AI is going to be fighting you every step of the way. And if you try to utilize command points to make it better, you run out nearly instantly trying to perform such coordinated manuevers.
Not to mention I seem to get the same fleet performance just focusing on the Afflictor or the Onslaught 100% of the time.
On the other hand, it all feels reasonable when applied to jumping in a Radiant. That ship breaks enough vanilla rules (assuming you have Systems Expertise) that it's probably worth the hoops you jump through (OP for hullmod, 2 tier 5 skills). Plus the bonus of a couple Alpha core Remnant frigates doesn't hurt.
Probably the skill should assume that ship switching in and of itself provides next to no benefit, and treat it more as a gimmick, and then be balanced from that viewpoint, while leaving the current interactions with automated ships the same, since that does provide benefit. I.e. leave the OP cost for the Remnant hullmod alone.