To clarify, I don't think anybody is doing anything wrong by putting fast, strong players on the edge to try to block punts, but....
The problem is the propensity with which it happens and yet it's rare to see a field goal blocked or batted down in the game (MFN)
Once again, the primary cause of the problem is the speed attribute and until that issue is addressed, perhaps roughing the Kicker penalties should be introduced as at present there is nothing to offset lining up the quickest players you have. Another option would be for the Head Coach to (randomly) call a fake Punt with a dumpoff screen pass to make it a 'double jeopardy' play. ie Get too aggressive with your personnel on ST and you're likely to get yellow flagged or give up a first down/TD.
A 'smart' Coach would quickly spot he is outmanned and adapt to combat his opponent. Either by double teaming the fastest guys with huge O Lineman forcing them to run wide, thus slowing them down. Or being overly physical, increasing the lightweight, speedy guys chances of getting injured. Or he would try to draw an Offsides flag (sometimes I think the game system tries to do this - it rarely works and usually results in a false start penalty). Or he innovates and uses the opponents tactics against them with a fake.