As a person with ADHD myself I'm definitely on the same wavelength with finding emojis distracting but a friend of mine finds them extremely engaging. I suspect that the emoji appeal is more whether you were raised in a setting with them embedded into speech or appended at the end of speech. That's all to say that I don't think the OP was really accurate when they said emojis distracted people with ADHD - it distracts some of us - and engages other[1].

I would also personally appreciate a more neutral professional tone to writing but it's important to get a wider understanding of your audience before over tuning your presentation.

1. (And if you really want to engage me put hyphens everywhere - I do mean everywhere... but that's just me.)