1) BoTW 2 will have somewhat better graphics than HW but the Switch is not much more powerful than Wii U. Neither of those things are difficult with hair to any competent developer.
2) BoTW 2 probably does not take place directly after BoTW 1. There is likely a time jump of weeks or months...
1) these experts don't know what they are talking about. Long haired player characters exist in games and they even had Ganondorf playable in Hyrule Warriors and he had a massive mane.
2) Nintendo don't care for practicality. As @TheGreatCthulhu has pointed out, a lot of the weapons in the...