YES!
When you stress her supposed special, mediating, sinless life you are assigning qualities to her worthy of worship which she does not have.
So you have to decide, does Mary have a relationship with God that makes her worthy of worship, or do Catholics not worship her? No matter how much Catholics deny worshipping her, it's plainly obvious they do worship Mary...and the Pope, and various other notable Catholics (Peter rejected this worship).
Parading a person, or a statue of a person on a pedestal through a public square or the isles of a church, and bowing down to them is worship. Saying it isn't doesn't change the fact that it is. Catholics worship Mary. And that's wrong. As blessed as she is (along with the rest of us) Jesus himself set the crowd straight on this undue exaltation of Mary:
Luke 11:27-28
27...a woman in the crowd raised her voice and said, “
Blessed is the womb that bore You, and blessed are the breasts that nursed You!”
28But He replied, “
Blessed rather are those who hear the word of God and obey it.”