My experience with blinking RX falls into to modes for what it's worth:
1) If I don't power off the TX (dx8 in my case) after disconnecting the ESC on the plane, then I get a blinking RX - but if flies fine.
2) If it get a blinking RX after flying - so what. I have not had any loss of control issues.
I have had loss of control and crashes, but have not had any of these in ages since using either separate UBEC to power the ESC using something like this: http://www.hobbyking.com/hobbyking/s...dproduct=33297
or a Capacitor on the RX itself like this: