For the record, I have read the posts here. I'm glad to see that DuctiSOFT is finally making an effort to introduce themselves. A public statement, even one that raises more questions, is better than silence.
I regret that DuctiSOFT have chosen a different path, but I note that Mr. Leduc has left open the possibility of reevaluating their decision in the future. I don't see much benefit in arguing the legal points of a claimed GPL license revocation on an internet discussion forum, but suffice to say that OpenDCL development will continue. In the meantime, I'm inclined to give DuctiSOFT every opportunity to prove that they deserve the trust and respect of the OpenDCL community.