The Threaded Rod to bolster the ribs was a good show, but to keep it simple - it is necessary to reinforce the base metal roofline, top notch for the application. However the inductive effects the straps add tend to work against the RF currents - so to use the braid straps was a greater step than needed for MOST people.
Anyone whom has used higher power - the RF skin effect that occurs - the heating also occurs in the paint - so the paint can discolor from the RF heating in using the skin effect.
So if you are looking 1KW or more, you may need to add this metal skin to the outside then bond at the edges - this would help in preserving the rust prevention from the RF heating and losses - but all the work with 1KW - if you're going that route - money is not the problem - the supports, bonding and return routes back to the amp is the major concern - attention to the details is their route, nothing else matters.
This may be going too far for some, but when you use higher power levels - this makes more sense and any effort you can add to the bolstering is needed, recommended and if not used, can make the install an EPIC fail - unless you have heavy AWG roof metal - like those in military - you will need to follow these steps in one fashion or another.
So to me, I don't need to bookmark the vid, but it does allow, confirms to, me, this install acts as the backup reference to show that when you're doing installs for the long haul - hi-performance end - the base, cornerstone, ground work - is extremely important to make the system work, and can be done to last the lifetime of the vehicle. Can't say it any simpler than that.