We were doing those things before we even detected ʻOumuamua. Whether or not ʻOumuamua specifically is extraterrestrial - which is not worth considering based on weak evidence - didn't change anything.
This is the problem: the evidence doesn't make the case, and "considering the possibility" doesn't lead anywhere interesting in terms of actual experimentation.
We were doing those things before we even detected ʻOumuamua. Whether or not ʻOumuamua specifically is extraterrestrial - which is not worth considering based on weak evidence - didn't change anything.
This is the problem: the evidence doesn't make the case, and "considering the possibility" doesn't lead anywhere interesting in terms of actual experimentation.