Highly highly unlikely
Marginal data, overinterpreted by second-rate scientists well out of their depth in an area they didn't understand. It's almost like anomalists blowing up jpegs and commenting on the angular artefacts.
They've then spent a decade trying to prove they were right, rather than trying to understand what's really going on.
OTOH, the meteorite was the right place to look. They just should have been more open with their early findings before leaping to a presidential conclusion and then being painted into a monumental corner.