I decided to look at the numbers to see if there was some metrics for or against Jarvis.
Aho with Jarvis (472 min) vs Aho without Jarvis (164 min).
CF%: 59.72% with vs. 57.23% without
GF%: 65.12% with vs. 57.14% without
xGF%: 65.8% with vs. 55.69% without
HDCF%: 63.74% with vs. 56.52% without
Now Aho with TT (310 min) vs. Aho without TT (190 min).
CF%: 57.53% with vs. 62.75% without TT
GF%: 57.14% with vs. 77.27% without TT
xGF%: 61.29% with vs. 64.72% without TT
HDCF%: 59.39 with vs. 63.86% without TT
On the surface, the analytics (at least possession metrics) seem to support keeping Jarvis on Aho's hip. Granted, there are a lot of other factors to consider (3rd line-mate, d pairing, competition, etc...) which can swing these numbers so it's not the be-all, end-all.