Noone is neglecting anything. They are two young actors, at the beginning of their career.
Before we condemn them, lets see how they will do at their parts in Trek XI and in other future parts.
They don't need to be Anthony Hopkins level of age and ability to pull of Kirk and Spock in any case.
I'm not condemning them nor am I saying that Spock or Kirk should only be played by the very best. What I said was that Anthony Hopkins was always more distinguished than both Quinto and Pine, even when he was young. He stood out as a great actor even when he was just an understudy, as I indicated in my previous post. This makes the comparison one of categorical error.
Furthermore, both Shattner and Nimoy, regardless of what you may think of their acting ability, are very unique individuals with a lot of character, something that in my view greatly benefited their roles of Kirk and Spock. All I'm trying to say is that neither Quinto nor Pine strike me as being very distinct or interesting and I'm concerned they will come across as bland. As Quinto has done in the two roles I have seen him play up till now (Adam on 24 and a few episodes of Saylar on Heroes). Totally forgettable. Of course, one could blame this on the matrial he had to do, but how far can this rationlisation go?