So please don't be offended, my dear friend, but for me this is not enough to say that 5 is trash!
I think this is a pointless conversation.
People who believe that 5 is trash have essentially lost the game. 3 months before release, they decided it wasn't worth spending money on. So why listen to their opinions? It's boring. If there's one thing Russians are good at, it's writing nasty things. They just want an add-on for 3 or 4, nothing more. Essentially, all "arguments" boil down to this.
In my opinion, the developers were wrong to release so much information; the dissatisfied people would have been unhappy anyway, even if they had made an add-on for 3 — "why repeat it, we've already played this." They should have given minimum information and no open beta testing.
As it stands, newcomers will surely read the posts of these "critics" and won't buy 5, and consequently, they won't be introduced to the world of Heroes of Might and Magic.