Not true, in fact, it's a gross distortion of the facts.
Here are his OPS by month since he became FT in AUG 2015:
.596
.596
.651
.731
.739
.770
.805
.807
.808
.839
1.009
1.163
1.175
Just because he as no .900 months does mean he has sucked every month, except the 3 over 1.000.
He's had 5 between .770 and .840.
That's 8 out of his last 13 months over .770.
10 out of 13 over .730.
(not counting SEPT '17, so one can project 8 out of 14 and 10 out 14.)
I know the guy is in an awful slump, but let's not re-write history over it.