I'm not worried. When it has come to Falvine's top hitting prospects, they are either in the lineup every day or playing that much in AAA.
"Passion"? He'd routinely show little effort running to first and would misplay routine flyballs. I in no way hate Rosario, but if the Twins retained him and the he hits like he has for the Indians, Twins Daily would be slamming him. He hasn't been all that much better than Sano this year and has certainly not been worth the $8M Cleveland gave him. He still can't get on base and his power is suddenly gone (4 HRs in 240+ PAs).
You're basing this off small sample sizes for both Gordon and Arraez... even with Arraez slumping, he still getting on base with a .350 OBP and has a career .316 BA. His defense is pretty bad, but we need him in the lineup, especially with how many solo HRs this team has been hitting without him.