[SPLIT LIP]

Most of the clear clips aren't where they need to be sturdy. There's clips on the front of the legs, which I can't imagine will hold anything but some additional armour, and clips on the soles of the feet. Those latter ones might be an issue, but anything attaching there would be the figure more or less resting on it. (like feet extensions) And again, the clear plastic doesn't seem brittle or weak at all.

Also no, Tonbo's wings are fine. The only part that could be an issue would be the outside parts of the hinge, (which are opaque blue) as those would be what would stress most if you tried to pop the wings off but, like, don't pop them off then?

Again, clear plastic is not your enemy. It won't just randomly break for no reason. Hell, and this might not exactly be comforting, but Sentai robo have had plenty of clip breaking issues with opaque plastic in the past. Usually it's a design issue, not a materials one. Just to play devil's advocate I played with the clear clips a bit using the spiders's legs, and they don't feel any different than the clips on the spiders' bellies.