Well nobody is forcing you to apply! I'm just offering a job and giving some adviSe to help others.
That's the problem, you knew these people and what they were capable of. Imagine that you receive a CV (amongst the tens if you're the hiring manager or hundreds if you're HR) you received that week from someone you don't know and it's obvious that they only spent 10 minutes throwing together a generic CV with loads of spelling and grammatical mistakes (i look over the odd spelling/grammatical mistake, we all do that!) and didn't clearly explain what they did in their career but included the phrase "i have great attention to detail", be honest with yourself, would you think "wow, this person is worth an interview i bet they're great"?
By the way, i've been an aircraft mechanic/technician for 36 years, 23 of them in the RAF, so, yes, i do know what a bl00dy spanner looks like!