alt Hacker NewsOh don't worry, we were warned about the laziness of English natives, especially those further west (no offence). ;)
So what would you suggest a writing assistance tool should focus on between correctness, common use and likelihood of the reader understanding the message? I've had plenty of Russian and Chinese colleagues over the years who will butcher and utterly destroy the word "the" from their written English messages, with a passion, but I managed to understand what they were writing regardless.
I’ve no idea what you refer to with "laziness". The "rule" that you claim you were taught simply does not always apply.
A smart writing assistant will give advice that’s appropriate to the context, register, the recipient’s culture, communication style and tastes, and the author’s relationship with the recipient. Sometimes writing very normatively and by the book is part of the message. Sometimes the exact opposite is true. If the assistant is unaware of all the context relevant to the communication, it’s likely to be a bad assistant.
Dropping articles is wrong because English as natively spoken doesn’t work like that. Except when it does, like news headlines, condensed "telegram" or SMS style, and so on.