Is that actually true, or just a narrative that's not really backed up by his results?
I don't think anybody has argued that Berrios is a true #1 starter/ace type pitcher, but rather he is more of a very good number 2 in a good season/#3 in a more average season. Below is a quick breakdown of his starts from 2019 and 2021, which are his best two seasons up to this point. For comparisons sake I've also included 2022 results.
2022 Season
0-3 FIP: 12 starts
3-4 FIP:7 starts
4-5 FIP: 3 starts
5-10 FIP: 3 starts
10+ FIP: 7 starts
2021 Season
0-3 FIP:15 starts
3-4 FIP:5 starts
4-5 FIP: 5 starts
5-10 FIP: 7 starts
10+ FIP: 0 starts
2019 Season
0-3 FIP: 11 starts
3-4 FIP: 7 starts
4-5 FIP: 7 starts
5-10 FIP: 6 starts
10+ FIP: 1 start
I recall a troll who was ranting on about how Berrios would have 1 good start and then 2 bad starts (don't think it was you specifically connorp), but this certainly doesn't seem to be the case. In 2019 Berrios had 20 starts which looked legitimately good, with 5 more that were at least league average or so, and 7 poor starts. 2019 had 18 good starts, 7 average or so, 6 bad starts, and 1 disaster. Hopefully Berrios can regain the form he displayed in 2021, as there were far fewer disastrous starts that season.