I just cannot agree, because the game is designed to not require any serious optimization at all.
Its literally in the math of the game. We dont need 16's, we dont need special rules, and we dont need magical items.
The basic math of the game, 5e, is perfectly supported with Standard Array, and no ASI at all.
The rest? Just makes it even easier.
I'm not expecting serious optimization.
The point is the race doesn't benefit 1/2 of the classes at all.
The puts you behind expectations.
You don't need a 16. However a Dragonborn grants dragon breath. A tiefling gives you extra spells. A dwarf gives you armor and weapons.
A orc or half orc does nothing for a wizard, sorcerer, bard, or warlock. And almost nothing for a cleric and druid. That is game design of either closedmindedness or narrowmindedness.