(There is psychological value to countering an opposing spell with a Force Spike since they are so easy to play around, yet it's not worth playing around them in Commander because they aren't heavily played, which makes getting your powerful spell hit by Jwari Disruption especially devastating.) As for the rest of the bunch, Silundi Vision is listed as an often play just because you need to be a reasonably spell-heavy deck for it to work
If more "cantrips" (cards that replace themselves) were costed this aggressively, more of them would have been on this list
But at the end of the day, there was no forward progression
Blood Baron of Vizkopa was one of my favorite creatures from Dragon's Maze , which was a set that didn't have a ton of gems
All that being said, the card is still a relatively cheap rare all things considered
Throw in a very reasonable stats-to-cost ratio for a Kamigawa legend, and you have an incredibly solid Snakes commander