It's not even all that recently. For the past month or so he's been hitting the ball on the nose rather than the continual diet of K's that we got for a while but he was getting nothing for it. That's called 'improvement'. However, he was getting nothing for it, which is why he had that outrageously low BAPIP*. Now he's apparently trying to hit the ball where it's pitched rather than trying to pull everything and he's getting more hits for his efforts.
I recognize that he got off to a very slow start. I also recognize that he has a history of being very streaky. But I also recognize that when he hits like he does during his hot streaks there may not be a better overall CF in the league. The hot streaks show what he's capable of and that potential is why it's foolhardy to trade him. IMO he has the remainder of this year to prove himself - to prove that he is a decent hitter with solid power. If he goes into another extended hitting funk it's going to be harder to defend him but until he does defending him is a very easy thing to do in spite of the .200 2018 BA.
Unfortunately there are going to be those who have their minds made up that he "can't hit" and should be traded. These are the people who are now saying "He's only hitting .200". Well, last month he was hitting .190 and he's brought his average up 10 points - not an easy thing to do half way through the season. If he continues to hit and his average goes to .210, then .220, then .225 by the middle of September are these people still going to be saying, "He's only hitting .225" after he's brought his average up 35 points in three months? I'm not going to project what his OPS might be but if he brings his BA up by even 20 points his OPS will climb accordingly because of his power. Is he always going to be hamstrung by his poor start this year and the effect it has on his entire year's average?
*For those who think that I put no value on metrics, BAPIP is one of those things I'd never heard of before this season but I now think it can a better indication of how a player is hitting the ball than any other. This one makes sense to me because it's steeped in logic. Give me a metric that's steeped in logic and I'll buy into it. It's the ones that have a lot of mumbo-jumbo that I'm skeptical of.