> In principle Rascal is a research laboratory and research vehicle that is not intended for production use (yet).
No offense and nothing personal, but the following remark struck me as rather entitled and self-serving to your commercial interests:
> But they could make that fact clearer. (Also, I haven't actually checked every single source file, so there is some risk some of them might be under different license terms.)
This perspective may be slightly biased with recent personal experiences in dealing with an aquisition team who habitually tries to weasel its way into having its cake and eating it too.