No.
I guess I'll say it but if you want your pilots separate from certain ships maybe you should just play Attack Wing instead.
If the pilots and ships had been separate from the start I think it's safe to say that you would not recognize the game we have today. Those nice pilot abilities you see on certain ships would probably be replace with far less interesting things just because you lose all balance that putting a given effect on a specific ship would have. Having the pilots we know now be able to jump around from ship to ship while keeping the same pilot ability is really a lot more work than it needs to be.
Now if you REALLY think you need to see a specific pilot in a different ship that is where the discussion of new pilot cards for other ships comes. You want Steele in a Defender that would be a new pilot but you'll also need to consider that it may bring a new ability as well. I'm sure everyone could go over lists of pilot abilities and pick some that really should only work with the SHIP they are on instead of the pilot they happen to be tied to. If we look at Tycho I have to believe that a big reason he can ignore Stress when it comes to actions is because he's in an A-Wing. Another great idea could be to put Turr in a Decimator; look at that a large ship that is almost always going to get a shot every turn and then after that could Boost or BR despite having neither of these things in its action bar.