Hello and thank you for reporting.
I decided to
issue a short ban in this case as you could have prevented the blocking/teamkilling by walking through him using the ingame command "!zstuck". You might not have been able to type it in time for the "no-block" to activate itself, but in the future you can make a bind for it by typing < bind "F2" "say !zstuck" > (without the <>'s) in console or adding it to your config/autoexec so that you don't need to type it in chat every time you need to use "!zstuck". (Doesn't have to be F2, but it is an easy to reach key IMO.) If you don't know how to open/activate the console you can google it.