Jesus never invited any spectators when he initiated the memorial (in fact he kicked one out).
The Bible doesn't say spectators must watch the anointed pass the bread every year.
There was no provision in the Pascha meal for people not to join in the meal. Egyptians were not invited into the homes of the Jews to watch them eat. No, not even the Egyptians that later joined the Jews on their exodus (according to the myth).
Thats true. This ceremony that JWs do is like a circus clown event. Why do nonpartakers need to attend ?. To passover the emblems ? Thats a funny and silly thing.
And Jesus said "Whoever does not eat my flesh and drink my blood will not have eternal life"
So this human flesh Eating and Human blood drinking(Yuck) is mandatory for every christian.