Re: This announcement worries me
"...does Micro Focus actually have any commitment to Linux ..."
Hard to say. As a company, Micro Focus actually does good work (even if it is mainly known for its COBOL products), so I'm not concerned about SUSE suddenly being re-written into an unrecognizable mess.
If this is a response to Micro Focus's presumably shrinking product base, more power to 'em. Let them grow past their boundaries.