FEC tunel is really awesome, I have played with tinyfecvpn and it can make bad connection usable for VOIP and other realtime services. You trade in bandwidth for better and smoother latency and no packet loss.
Sadly there are many similar features that would be nice to have (just look into "Feature requests" thread
, it's probably the longest thread on this forum). Seems like Mikrotik doesn't have enough developers... and they are all mostly busy slowly fixing all the bugs.
But if you really need these features and have enough money to spend, you can try your luck by contacting support with your proposal... it's worth a try.
Posting on this forum usually doesn't change anything...