I see nothing unusual or unexpected about it. IMO that's what's going to happen with
every indie developer who dares challenge a
commercial product with a
free and, ultimately,
open-source competing alternative. And if such an alternative appears better (faster and/or more versatile and/or less buggy), so much the worse for that indie developer.
Now I'm starting to stock up popcorn for a similar show when a line of alternative 32- and 64-bit compilers and/or translators are going to emerge by the end of this year as it becomes apparent that Drake Software's acquisition of defunct PowerBASIC has been made with nothing more in mind than just withdraw that instrument from the reach of the company's potential or existing competitors.