I don't know, I would be slow to judge such a thing. While I'm not a fan of the Tibetan bells, who said vespers services have to be a church?
A friend of mine who is a seminary graduate and tonsured reader, runs a ministry in Cleveland where he goes from nursing home to nursing home, holding Akathist and Reader services for those infirmed. Although it is intended to minister to Orthodox Christians, the majority of those who attend are not Orthodox. One woman has been baptized because of his ministry.
While I understand that people in nursing homes are infirmed and it is difficult for them to go to Church, by the Anglican Church having these "pop-up" Vesper services in a mall, or where ever they may be, they can draw people who might not normally go to Church.
The person may attend the vespers service and say "Hey, this is pretty neat, maybe I'll check out the Eucharistic Mass on Sunday."
The Willard Preacher at Penn State uses a very un-orthodox form of ministry to draw people to Orthodoxy. I have heard many stories of his success over the years.
I think this is just is another form of that.