this doesnt make any sense, they improved the response time making it easier to dodge grenades.. and now you claim theyve been indirectly buffed?
For those that dont know. the animation for the rifle grenade is that one of the squad members (usually towards the front) takes a knee, places his rifle on the ground to angle for a shot, and then fires it. Its probably the easiest grenade animation to spot. The time from launching the grenade to it landing is just under 1 second. If you catch it from the start you have plenty of time to order your squad to side step it.
Not having the glaringly obvious big red timer makes its slightly harder to spot. But if you know the animation you have the same exact options as if it were a normal grenade because its about the same timing.
you really need to be looking for the grenade animation for all types of infantry if you want to play your best. (rather than relying on the timer). If you see the animation and react immediatly you usually can side step the grenade. If you wait for the timer to appear you usually have to retreat (or just choose to take the damage)
You forgot to mention that there's also a loud, distinctive "CHUNK" noise and the targeted squad yells "GRENADE!", both of which you can hear from pretty much anywhere on the map. I also don't find rifle grenades hard to dodge with infantry. Team weapons are another story, but grenades are for killing weapon teams
Rifle grenades have really long range, which makes double rifle grenades strong at killing maxims, for example, but that's a different issue than the animation.