Gmail kills the most important aspect of a job application: free writing.
Your cover letter reveals your persona to future employers. Gmail’s writing suggestions setting masks it.
The whole idea behind Gmail’s auto-suggest is to make people productive with their mobile email experience. What if you are typing during a commute or a meeting? It really speeds up the process. Except that it tries to replace/mimic the messaging experience.
It’s not your Gmail account — it’s the recipient’s spam filter: