Results in weak, suboptimal builds.
No it doesn't.
I don't think I've ever played a class/race combo where the strong ability score has aligned with the key class ability score, and I've played with plenty of players who, conversely, do put a lot of stock in that... and I have never felt weak, sub-optimal or less functionally effective than other characters. By 4th level, the racial ability bonuses even out more or less, and everyone can get to their twenty easily enough regardless of their choice of race, if that's what they want to do. 5e's bounded scores makes sure that you aren't handicapped by an unusual class-race combo unless you want to be; that's one part of what it's designed to assist with, and it does so well.
