I am assuming that the table dbo.Products has more columns than those defined in the indexed view you built over the table and that the query using the indexed views index is only looking at the columns defined in the indexed view.

If these assumptions are true, SQL Server is using the index on the view (and the view) to satisfy the query because it is more compact than using the underlying table.

Really can't give a better explanation as you really didn't provide enough information in either post to really give a better answer.