Regarding your latests comments...
1...You are ignoring the possibility of ambiguity. It is best to have no chance of ambiguity.
It doesn't matter how commonly "get" is used. "becomes" removes the small chance of ambiguity that "gets" carries.
2...Whether in the original sentence or in my preferred sentence, we don't need to describe a process; we only need to describe a state, and that is one of the reasons "is" is best, in my opinion.
Keep language simple, direct and unambiguous!
3...Sometimes adverb placement is flexible, but sometimes it is not if you want to keep the meaning very clear/unambiguous. In our sentences it is not flexible, if you want no chance of ambiguity.
Let's take another example:
He is excited only when he gambles. (= The only times he is excited is when he gambles.)
He is only excited when he gambles. This sentence can be taken to mean the same as the first sentence, but it also can mean that he is not nervous or worried when he gambles, he is only excited. So why allow any chance of ambiguity?
In these sentences, I would be more receptive towards the use of "gets" (or "becomes") because there is no possibility of ambiguity being introduced. And, of course, a process is possible.
Hopefully I will have nothing more to say about this. The last word is yours, if you wish.
Last edited by 2006; 13-Nov-2007 at 01:16.