I will gladly watch all these shows, but I have to admit, those descriptions are not amazing. I am sure the shows will be fine, but none of these sound like "Daredevil" quality to me. With the exception of the Falcon/Bucky show. That sounds pretty awesome and like an extension of TWS. Again, this assumes those leaks are accurate (but they do sound about right to me)
As for the Sif thing, I think that show is a fine idea. Just because Sif gets a show doesn't mean someone like Valkyrie can't later. I assume these ones we're reading about are just the 1st wave of shows. Seems like Loki and Scarlet Witch/Vision likely are going to be the first shows we get, so if those are major hits, I bet these come a mile a minute.