Not exactly. It's a conclusion you could potentially draw, but I don't think it's an accurate one.
We're saying it can get in the way of perhaps making a fully knowledgeable decision, a fully open decision. That's the issue. So if you open it up a little bit, then you'll allow other options to be seriously considered, and as long as they're within your risk tolerance, you'd be fine.
But if you assume you're going to go to a particular constraint before exploring the fact of whether or not it's just a risk-based constraint or whether it's an absolute constraint, then you're tying your hands unnecessarily at the beginning instead of later on.