Cost as a balancing mechanism...where have we heard that before...
Because I didn't mention any other objective, quantifiable pieces of data in my post as to why the Talos has no significant advantages over other ships in this class/role.
Flying blaster battleships, of which there are three in the game, is an extraordinarily frustrating process. Your dps is crap at almost every range besides point blank, but if you are engaging a target with anything less than scram, and 2 webs effective on it, you do less dps than most battlecruisers due to the number of misses you incur.
If one was to create a ship class that uses battleship class weapons, and didn't have any interest in remarkably improving the performance of the heavier blaster battleships, while still allowing this new class to be effective in its niche, designated role, then the web bonus and ship hull velocity is mandatory, as without it is nearly impossible to maintain that close range to be effective.
The Talos will be popular in gatecamps, and I can see where this might incur some angst from other pilots. However, other Tier 3's will be effective Talos counters, such as artillery Tornados, Naga snipers, or Beam/Pulse Oracles. the talos will be utterly defenseless against a long-range assault; how is this not an effective counter?
I thought the line was that if a ship class's only counter was more of that ship class, then it was overpowered/unbalanced. That is clearly not the case here, as any number of shiptypes are effective in countering the Talos short-range superiority.