Are your new CSP files being added to source control properly? I'm trying to reproduce your issue, but when adding a new csp file, get the output 

exporting new version of /csp/testdb/wrc.csp to C:\InterSystems\IRIS\mgr\repo\TESTDB\csp\testdb\rc.csp

(i.e. the wrc.csp file is exported as rc.csp). Does this happen to you as well? Seems from your output it isn't but just wanted to check)

@Robert Cemper I don't see the review for the iris-angular-template in the application, the link does not lead to anything.

This doesn't fully solve the issue, but you can start/stop comments using "ctr + /". To stop commenting you would be able to press "enter" then "ctr + /", which is slightly better than having to backspace out of it.