The Episcopalians are a very liberal protestant group, with a Catholic style of organization. If they were to produce a kid's video about 'two mommies,' I can guarantee it would be the polar OPPOSITE of the one just released by JW.org. It would probably show the girl's mommy saying, "well sweetie, what's important is that the child has a loving family, with parents who support her. Remember what Jesus said about children in Matthew 19:14?"
Anyway, I don't think they were 'love bombing' in the cult sense. Maybe, a little, but they probably won't pester you with phone calls, or door knocking if you decide to sit in on one of their sermons.
My Church, a Disciples of Christ denomination, stopped by and dropped off a loaf of homemade bread at my house, soon after I first signed their guest book. And that was about it. Btw, the bread symbolizes communion, for EVERYONE (not a select few).
The United Methodist Church emails me their newsletter each week.
All in all, love-bombing or not, the one thing I've personally noticed, is that upon 'moving' to a different church...going from Methodist to Disciples, for example, I have never been shunned. I still go fishing with a couple guys from First Methodist, and my old pastor still smiles and says "howdy," whenever I see him out walking my dogs.
I think that churches/cults that engage in love-bombing are quick to flip the switch and do 'hate-bombing.'