Q,
I agree with the next logical step in your post.
I believe what rupen was saying, was that there is not a powerful enough lobby for EB immigrants to get that increase in Immigrant visas into any amended Bill prior to voting in the House or into any Conference Bill. The absence was not an oversight by the House Republicans and other lobbying groups have different agendas.
Realistically, if the Bill isn't amended before it is voted on in the House, or it isn't included in any Conference Bill, there will be no subsequent stand alone Bill to make it happen.