I can see the argument to standardise all mobile chargers and connectors but if they were to do that I would support the lightning connector being the standard, if only Apple would allow its use to others.
I do not see any Apple connectors being a standard across products from multiple vendors. Apple does not want that. They want third party accessories to work with Apple products only. They have enough clout that third party accessory makers tend to make stuff or Apple products only like bigger speakers for your iPhone to listen to music. There was a portable charging unit in Kickstarter that almost got cancelled because Apple didn't want such a device working with other non-Apple products as well as Apple products. They changed their mind once word got out. I'm sure Apple wanted such a product, but only work with Apple products.
I like some of the features in the lightning connector and would like to see it or something like it to be standardised across all products. It will not be the lightning connector, but most likely some other similar and possibly better connector that will be made in the future. With higher and higher powered portable/mobile devices, micro-USB cannot be used with higher powered devices. I always wondered why my tablet doesn't use a micro-USB connector, but a proprietary one. One of the reasons is likely power requirements that the micro-USB connector cannot support. Right now, micro-USB supports most mobile devices. Perhaps in the future when power requirements get higher and higher, we will end up standardising on a different connector with features that will rival the lightning connector, but work across many different products.