Who is right?
Let us turn to Paul for advice......
Let no man therefore judge you ......in respect of an holyday,..
Colossians 2:16
So as long as Christians use the occasion for the CHRISTIAN reason for the celebration within the walls of the church sanctuary....they should not be condemned as "pagans". Even though the date of "Easter", the name of it & other aspects are rooted in paganism.
At the same time, those who choose not to participate in any "Easter" services should NOT be called "legalists" by the others.