Rcom pro 20

[Jake3]

I am on day 16 using my new rcom incubator. I looked over the instructions and it says not to hatch in the incubator? ("We strongly recommend you to use independent Hatcher for egg hatching"......egg hatching in incubator creates germs, feathers which causes low egg hatch possibility for next hatch and also may break incubator.) Do most of you hatch in incubator or have separate hatcher? I just hatched chicks in my Brinisea without issue but didnt think about a hatcher till I read this.
Thanks.