Yes, no quarrel with any of the above. However, can I sound a note of caution? I was consulted over this issue when my company was writing SOPs for a new type. The Flight Manual for that also said the GP could be intercepted from above or below. On investigation it turned out that all the manufacturer meant was that the equipment was capable of intercepting a glidepath signal from above or below, not that it was recommended practice.
And although the advice above about "you'll know if you are on a false GP by Rate of Descent, Ht vs range, etc" is correct, it is better to avoid the false GP than having to recover from one. For this reason we use a short level segment.