Replacement of all of those coils (COPs) is a really good idea, but I don't see anything "burnt" about them. I see rust where water has been pouring on them from the wiper cowl. You need to get the $5 wiper cowl seal repair kit if it is still available, otherwise get some weather striping and improvise something. The dabs of RTV on the coils is because the latches on the coil connectors (harness side) have broken, so the RTV is one of a few ways to keep them plugged in without actually replacing the connector housings.