It does make sense to utilise the 465/2s, and indeed it has been fairly widely predicted here they’d be used to release Electrostars to GTR in order to backfill some of the many units they have ditched over the last year or so.
There is some irony though that 25 years ago Maidstone was getting shiny new 365s, yet now they seem likely to get 465/466 in one form or another, which as well as being older than the 365s are to an extent inferior in a number of ways.
It will be interesting to see how long the Networkers last now. It seems to have gone from “likely to be gone in the next franchise” to “could be around for ages now”.