centering prayer is I think still a banned topic so let’s discuss order in thread title, I looked recently through their catalog looking for some LOTH helps, and did not see anything OP describes. They are not the same as Paulist Press, who sell a wide range of books, some by authors many here would consider liberal. also just because a website catalog or store sells a wide range of items does not necessarily mean whoever owns and operates that sales arm of the order or parish has read and approved each an every item, nor is it reasonable to assume they should.
If you want to know about the order themselves, research the order, talk to the leadership, to sisters who belong, make a visit, find out about their programs to nourish vocations, their formation and the like. To judge by what they might sell in their on-line store is not going to tell a whole lot about the order. If you are talking about books actually published under their auspices, that is a different thing, so try to see if you can find a listing that shows what they actually publish, that will be a far more reliable indicator.