That's been a single strike.

I wonder how good it would still be when the enemy had resources and time to adapt in an ongoing conflict. In russia's war with ukraine, we saw tactics and tools quickly evolving.

Not on the level of responding to fith generation fighter jets. Most of their advances are in quadcopter technology. They both started with ww2 tactics. Its not surprising that they would take advantage of the low hanging fruits of 75 years of progress. If anything it's shocking how little both sides have changed fundamental tactics like not using meatwaves, which went out of fashion in ww1.

Only if US lets you use it, and given constant instability current government shows, next generation of fighters won't be bought from US.

Better to have something even worse on paper that can actually fly and lock targets than an expensive paperweight.