Care to elaborate more about why it would be such a bad idea?
Also, I don't think it would really fit in, as for reasons mentioned. (Making life too easy for powertraders and the upcoming conflicts between the houses of Sirius.)
Also, there wouldn't be any use for the indie worlds if we had jumpgates like these. Traders would usually have to take the risk to go through the systems. You could actually risk being stopped by raiders and pirates. With these jumpgates, you can now safely bridge the distance between systems within a minute.
Next to that, how would this be explained lore-wise? Did the house factions just decide to place newly developed supergates in each house's capital system? Wouldn't that be horribly dangerous?