Again you miss the point, if a non mod 2 range is blindly chosen for RTP range and the same one used for 'unblockin’or ‘routing’ back to Asterisk a number of calls will have problems, and the smaller that range is the higher proportion, there are no idiot checks in Asterisk to correct a non mod2 range so choosing a mod2 range for asterisks makes sense and confuses no-one.
One in 5000 calls with problems will hardly be noticed, but on in 3 almost certainly would, so I pointed it out.