I guess in a way you could be come dependent on them, but if you always use them...is that really a dependency or just a matter of fact? It's not like you're going to change lifting shoes every workout.
I would imagine you could keep with them, but like Garrett said, keep ankle flexibility a regular part of your program. I would say that if you switch to another shoe after a fair amount of time with the do-win's, just plan on an adjustment period.
FWIW, I measured the heel of my silver adistar's and subtracted the width of the sole...the difference measured 7/8". So a hair under 1 inch.