How does REACH promote innovation and development of safer substitutes?

To enhance industry's competitiveness, one of the objectives of REACH is to promote R&D and innovation. For example:

Uses of substances in product- or process-oriented R&D do not need to be registered for up to 5 years, renewable for a further maximum of 5 years in the case of a substance being exclusively used in the development of medicinal products or, under certain conditions, for a further maximum of ten years if the substance is not placed on the market.
The REACH threshold for registration (1 tonne/year) is much higher than the current threshold of 10 kg for new substances.
The costs of registering a new substance will be significantly lower than the current cost of notification.
Registration will be quicker than the current notification, thus reducing the time to market.
The authorisation requirement for substances of very high concern will encourage companies to increase their research into safer substitutes.
The discrimination of new substances versus existing substances will come to an end.