Why duplicate php functions in Bitrix?

Question

1C-Bitrix

bxapi.ru/src/?module_id=main&name=Helper%3A%3AgetC...
Why are methods implemented in Bitrix that duplicate php functions?

Answer 1

1) To maintain the method naming standard and always be in line with the OOP architecture, even if the function is trifling;
2) Increase code portability from one version of PHP to another (who knows what bit depth of the variable microtime() will return tomorrow and whether it will be a familiar float).
3) The microtime() function in the method is called with a parameter, and this is already a specific use of the function - let's write a separate method for it.