Supporting your suggestion ,i also was about to suggest is too.
Most of players use satchels/grenades there and I guess this is unfair because ofc he can be the top damage easily.
any way I see no reason to don't add this.
Up-voted.the damages will be continue if you got killed? Or it will lost and back to 0?
i guess if it continues would be better,as a record for example or something.