No, the 'announcement' was that the number of injuries that can happen in one match has been reduced, and once cured, an injured player has a 'grace period' before they could be injured again.
In my experience, there's still the same number of injuries (particularly at lower levels), they're just spread over more matches, and the 'grace period' can be as low as 2 days...
Any formation or tactics advice given is based purely on experience with my teams...