Shocking "analysis" from MOTD. Firstly, although Evans hand does touch the player, is that a foul? No. So it's irreverent. By their own admission Evans is aware of the guy so clearly he is "interfering with play". Thus the only issue is if this applies for own goals or not, which I honest have no idea of.
As for any ban, it would be inconsistent from the FA. The officials clearly heard/saw SAF and chose to not send him off/to the stands. So given they refuse to overrule decisions on players, I don't think this should be any different.
That being said, it wasn't pretty from SAF I agree, although you do see it to a similar degree from other managers, including this very game