I don't really get this attitude myself. I wasn't even around in the 'old days' of COH, but wasn't the Dev team after Cryptic sold off COH an almost complete overhaul with a couple of exceptions? If you stuck around after that point I think it would make sense that you'd play a sequel with a different dev team.
Not according to Paragon Wiki where it says "most of those developers for the game left Cryptic and moved over to the new studio" [Paragon Studio]
http://wiki.cohtitan.com/wiki/Paragon_Studios I have seen many business's change hands and the old customers slowly vanish because the new owners don't understands them. The business may attract new customers and succeed, but often it fails.
Keep in mind a new team will not know the old players. They will not have spent time playing with them in the old game, meeting them at events and reading their forum posts. This can lead to many pitfalls and problems such as...
A new team will not know the history of the game. "Go Hunt, Kill Skulls", "Winter Lord Baby" & "Sister Flame" will be meaningless phrases to them. Memes, shared history, and in jokes can build a community, and keep it together.
A new team is likely to put things into the game that will alienate and anger many old players.
"Lets have missions and badges and loot in PvP zones so PvEers will go there."
"We don't need very many costumes to start all we need are a lot of sexy, revealing costumes for girls and give the men kick ass macho stuff and we can charge for any new costumes after that."
There are hundreds if not thousands more pitfalls an old team would nimbly avoid that a new team will likely fall into and wind up angering the original player base. That is why if CoH2 is ever made, Not that I think NC Soft will do so, that without a core group of the original Devs it is likely to be unappealing to the original players.