Also in the Fred Wolf universe itself the Technodrome was "destroyed" in a few eps as a joke and then "magically" back to normal in the next episode. I think there was an episode in Season 4 where the Turtles use a giant magnet to bring a whole bunch of ships from the ocean to crash into the Technodrome...and the Technodrome is then sitting there with like 5 boats lodged into it.
Then in the next episode the Technodrome is magically back to normal again. Or remember the ep the Technodrome was brought back to Dimension X but upside down?
Or when it was sinking underneath the lava in one episode with Shredder/Krang still inside and then the next episode it was back on the ground?
The show itself was inconsistent, so of course if the Technodrome is used in Turtles Forever or the Nick show and changed...it would be brought back to normal next time in the original toon universe.