I think the author is just talking like they normally do.

There is generally a lot of jargon and acronyms used here. All the time. Just that most of it is regarding programming/development, so people don't notice it.

Also, even if they were spelled out, you'd still need to google the term to understand what it means. I.e., LOI and "Letter of Intent" are still just tokens that represent a concept.

Why not politely ask me what they are and maybe I'll answer.

DD = due diligence

LOI = letter of intent

SPA = stock purchase agreement

RWI = reps & warranties insurance

Why presume the worst instead of presuming they are acting in good faith and simply didn't think to expand their acronyms?