Last Sunday my wife, son and I went to an 8 am Holy Communion service. We departed the church at 8.29 am. That the three of us doubled the congregation may give you the seed-germ of a significant part of the explanation as to why the service was not longer. (Another part is that there were no hymns).
I do not want to offer a view here as to whether an 8 am service should be as concise as the one above or longer, include or exclude hymns, be in the main body of the church or in a side chapel.
But I do want to praise 8 am services in the Anglican tradition, that is, communion services which are normally quiet, dignified, spartan, time-disciplined acts of worship.
I think it may be me growing older but I find myself with ever deepening yearnings toward quiet and dignified worship(what is happening for you?). The classic, traditional Anglican 8 am service fills this yearning. (Though it is not the only means - other services at other times of the day can do this, e.g. Evensong and Compline. An advantage of 8am on a Sunday over evening services is that one gets to church before the unexpected calls of the day intrude with their potential to prevent one from participating in evening worship).
I like 8 am Communion. I hardly ever get to this service. Last week was a treat!