WOT..........I think he's trying to make a point which obviously flew way above your head at mach 2.
You are right; intelligence does not correlate to spelling or punctuation ability. However, it does reflect overall education and 'ones' attention to detail and presentation. The more reputable airlines do look considerably further than raw flying ability. I have processed many hundreds of CVs and the first place a poorly presented, incoherent ramble that is laden with grammatical and spelling errors is consigned is 'file 13' aka the bin.
2098; I strongly suggest you broaden your interests beyond the realms of women and football. No matter how sociable you may be you will not get past the first interview.