I see exactly what he's saying, since I watched that episode.
TL;DW/DR : allow Warp-gates to be sequentially chained.
EX: A warps to B warps to C warps to D warps to E warps to F.
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Full breakdown:
Normal current operation is more like:
A warps to B, fly to C-D, then C warps to D, fly to E-F, then E warps to F
It is entirely possible to get assaulted while transiting between gate pairs.
With the proposed system, you'd be linking together B and C, along with D and E, creating one long chain.
EX: A warps to B to C to D to E to F.
Each gate still has to have enough power to warp the object being slung across the universe, and each one still has to FIT the object being slung across the universe, there'd just be no stopping after each leg of the jump to switch what Gate-pair you'll be using.
Presumeably, unlike the example vid, you'd be able to enter from any part of the chain, and travel to the designated end.
EX: D to E to F.
Travel in the Other direction? Well, the simplest is just constructing another set running the other direction.
Among the many uses of such a re-doing of the system, is making Inter-Galactic travel less of a P.I.T.A.