The downside to "reinforcing" the ARF is that if you do have a hard landing, the affected parts shatter making repair more difficult.
I find that if I leave well enough alone when something comes loose it's a simple matter of a few drops of medium CA and its back together.

I usually only reinforce around the firewall (had one fall out when I dropped the fuse off my benchtable) and the servo tray and landing ear area.

the rest I leave alone. I also only reinforce with white wood glue because its flexible and helps damp vibration. Beyond that, flying an ARF is an act of trust and faith.

What we have to remember is that the reinforcing is of no use if the Epoxy or CA cannot penetrate the ply. If t does not penetrate then the "reinforcing" is cosmetic and just adds weight. wood glue at least penetrates.