Cleveland and Anastasios,
I understand what you guys are saying, but I'm not sure you guys understood my argument as to why, in terms of practical reality, such a canon seems pretty useless.
Practically speaking, the most common max. frequency that the average Orthodox Christian would likely participate of the Eucharist, is once a week; wouldn't you agree? If we can assume that such is a reasonable general assumption to make, then you still have the same problem (and I am just granting the assumption that there is in fact a "problem" for arguments sake here) of dividing the congregation at any given parish that performs more than one weekly Liturgy. For example, for the congregation of the parish that serves Sunday and Friday Liturgies, Sunday may be the ideal time for some of the congregation, whilst Friday may be the ideal time for others. Essentially then, you have the possibility of two distinct sets of faithful communing weekly on two different occasions, which according to your logic, is in effect the creation of two churches a week. Does this then call for a canon to limit the performance of Liturgies to once a week in order that all weekly attendants partake of the Eucharist on a common day without being split between different days of the week?
On a side note, my personal position on the matter is obviously influenced by the judgment of the late Pope St. Kyrillos who, according to our experience and faith anyway, had an intimate relationship with the Altar Angels. I highly doubt the Altar Angels would encourage a practice that is not in line with the will of God. I'm certainly not trying to make an argument of this but only to reinforce the fact that as far as the authorities that I have to consider go, it's pretty much a moot point.