If we believe the official story 100%, then they merely plotted to do so, but never actually attempted it (they did, however, according to the official story, 'smuggle' non-volatile liquids on in a dummy run, without actually risking taking anything they'd be in serious trouble being caught with).
So, the best case scenario is that no-one 'did try just this'.
That's ignoring all the many holes with the case (that ended up requiring using a legal backdoor to convict them without a unanimous verdict.
If we believe the official story 100%, then they merely plotted to do so, but never actually attempted it (they did, however, according to the official story, 'smuggle' non-volatile liquids on in a dummy run, without actually risking taking anything they'd be in serious trouble being caught with).
So, the best case scenario is that no-one 'did try just this'.
That's ignoring all the many holes with the case (that ended up requiring using a legal backdoor to convict them without a unanimous verdict.