Cons of Stand Alone Living Benefit

What are the negative aspects of stand alone living benefits?

This article discusses some of the issues and downsides:
http://www.annuitydigest.com/blog/tom/standalone-living-benefits-provide...

High-level list of some of the potential negatives include:

1) Cost (they are certainly higher than they were a year ago)

2) Credit risk

3) Any restriction on asset / equity allocation

4) Account minimums

5) Restrictions on account types (e.g. managed accounts) and subsequently limited access