Proper English Indeed!
Dear Air Police
In the interest of advancing the collective linguistic and communicative ability of those reading this thread, I respectfully submit the following grammatical and language analysis of your post:
Sentence 1:- incorrect punctuation; the line should end with a colon not a full stop (you are making a suggestion, which follows).
Sentence 4:- 'Doctors' does not require an apostrophe (it is simply a plural). Stylistically, I would also suggest starting with 'Your lack of ability...', which then makes it clear who will have to clear those higher hurdles.
And finally, Sentence 5 flows somewhat clumsily for my liking - to improve it, I would omit the nugatory 'to be'.
I am confident that you will recognize this peer review and critical exposure as impersonal and academic in intent, and will support it, for the illumination and improvement of all.
I remain, sir, your most humble pedant,
F. P.