Salary bands are tied to title. If the max range of the listed position is $160k, and the company wants to hire you for $200k, they will just hire you into a more senior title (which has a higher range).

This is how it happens now, and how it will still happen. Disclosing the initial range target does not prevent it.

Are you saying that the employers won't give 170k+ if the disclosed max range is 170k? I highly doubt that, the only change here is that the range that was previously only visible to the hiring managers within the company is now also visible to the candidates. If they could go beyond the internally visible range before, they would surely be able to do it now. The only difference is that before the candidates would have no idea whether they're already maxed out on the given range or if there's still plenty of room to negotiate.