Ok breh let me put it like this. Machida would not have swung for the fences trying to take Silva head off if he clowned on him. Machida would not have tried to submit Silva. Machida is not a guy who goes into a fight with the gameplan of I will be aggressive and finish him. Hes more opportunistic then anything
Being opportunitistic lends itself to a longer career tho to be fair. It's rare to make it as long as he has as a fighter without having been in many all out dog fights. Too many cats lose fights they were otherwise winning by being too aggressive. Chris Leben made a career off catching folks coming in recklessly seeking a finish and KO'ing them, same as Chuck Liddell
Rampage is tough to finish but Machida was trying to take his head off when he wobbled him towards the end of their fight. Same with Tito, same with Jon Jones even Jon was able to get away from him and regroup but the moment Lyoto wobbled him he was in pursuit immediately.
To your point I can for sure see where ur coming from because it's going to be a long night as a Machida fan if no openings present themselves because he isn't the kind of fighter that's going to take chances to create an opening.