Like, please don't make your experience representative, it isn't. >//<
You have solutions, but it's still not good, can only conclude that there's a lack of willingness to put in effort.
You know how to deal with these, like, we all deal with these that way, I repeat the pattern on m4 guns in my head with each telegraph.
Concerning M3, you know the lariat combo is coming, and you know you might have to switch, and well, even if you're stuck on the wrong side as the black circle AoE from the spin are there, you still have time to move to the other side after they resolve and before lariat combo happens. Have to look ahead a bit, prepare for what's coming.
Also like, for tetrapagos, you only have two movements to do, simplify your job and remember these two moves instead of remembering the whole sequence.
To me, this is "I don't want to put effort in this". You've resolved the issues already. x_x