I agree with you.
I am realistic, I know that it would be impractical to leave them as they are or just as frames.
I do think that redevelopment of the area should take the frames into account, there is loads of potential.
The area does not really lend is self to a park, but there are many other options, even as retail. A developer would obviously need to take maintenance of the frames into account.
In the long term, the guide frames will become much rarer as a vast majority of gasholders get pulled down.
Then there may be regret that they were allowed to just be dismantled, without any real plans for the site.