no it isn't!
They’re offering themselves ‘entirely’ to a false mary...not Jesus as He has said to do. They’re ‘devoting’ themselves to her...their “whole being”....as a “possession” and “property”....not to Jesus. That prayer is people putting their focus, hope, and prayers in Mary instead of Jesus. That’s is heresy. It is idolatry........It would be impossible for a true Christian to make that commitment....
Unless of course they have a fixtion on the catholics mary because she is female and they have none in their life for whatever reason, so they need to identiyt with one.....or those who need a mother figure...but even then...clinging to the skirt of a false idol will rob you have what Jesus has that’s far better....