Speaking from personal experience, a certain temple I know of had issues such as the ones discussed here for some time, perhaps even a decade. Then for a number of years, with the roots of good organisation and admirable friendship within the English speaking community for a number of years, the numbers rose to come near to matching the non-English speaking community. Aiding this was the guidance of a monastic with genuine compassion and patience.
One must remember, that the key isn't policy, it's ensuring you have the right teacher present (which may itself be policy). There are some criteria which you can use to evaluate in the Sutras,
The teacher of the Dharma should be clean, have gentle behaviour, be neat, and well dressed.
Concerning the generosity of giving the Dharma,
If someone requests it,
First you should respond this way,
“I have not studied that in detail.”
Do not relate it immediately.
You should start by examining the vessel.
Once you know the vessel well,
Then you should give teachings even without a request.
King of Meditative Absorption Sutra
One should understand that a bodhisattva who has eight qualities is a perfect spiritual master. What are the eight? One who:
1.possesses the moral ethics of a Bodhisattva,
2.is learned in the bodhisattva’s teachings,
4.possesses compassion and kindness,
7.possesses an indefatigable mind, and
8.is expert in verbal expression.
Ten Stages Sutra
Possessing great scholarship and dispelling doubt, Whatever he says is acceptable, distinguishing the two realities — This is a perfect bodhisattva spiritual master.
Ornament of Mahayana Sutra
A spiritual master is always
Expert in the Mahayana teachings.
He will not abandon the bodhisattva’s vow
Even at the risk of his own life
Engaging in Bodhisattva Behaviour - Santideva
A recent interval occurred, wherein a less experienced teacher was asked to lead the same group. Certainly this teacher had admirable qualities, but due to the lack of some other qualities, the attendance dwindled, and the condition of the class returned to the type which Jamyang Khedrup described earlier. This has since been remedied, and attendance has risen.
This often is an unavoidable feature of such establishments due to the frequent rotation of resident monastics, but I think it may give us some hints as to how to solve such issues.
I find more than not, that Chinese etiquette is not the issue for westerners. The issue is just accessibility and understanding, which really comes from an appropriate teacher. One of the adaptations which needs to be made for the west, is opening up to greater conversation and discussion about these matters within Dharma classes with a tolerant, patient and wise teacher. With understanding of etiquette, will come accessibility in the minds of those otherwise troubled by it - more than anything, it is just very beautiful and can bring tranquility to your mind. The conditions which need to be adapted for, are ever so slight, because in the end we are all more similar than different because we are all human. Therefore, I don't believe that removing etiquette is the solution.