We all know how elo has been converted to mode for only rich players and how it is limited to power decks and "key" cards,and very less of skills required than better hands and those so called "key" cards.
The point scoring system and battles planned aren't good in tourney at all . Whatever penalties you make,are going to make no difference . All that I will say is that first play 5 consecutive tourneys yourself. Get annihilated by few,have long 4 minutes battle with some,depend on cards draw and make a little around 600 points. Whatever you do,just play 5 tourneys and know the flaws yourself ,know how tourney is leaning towards very less of skills(100% win) and more on your opponents(slow trollers -_-) . A 90 second fight with 2 HKO giving 27 points v/s a 200 second fight(all 4 rounds) giving maximum of 36 points. Any deck lower than 28* getting stuck at unfortunate hands ( a 4/4/2/2 hand against 5/5/5/5 ),petty for new bies (their 3/2/2/2 hand against 5/4/4/3) . Oh hell yeah,when you experience all that in playing then decide the penalties and scoring system(rather than listening to mean individuals ) .
Until then,whatever penalties are,whatever tourney system it is,no one is going to care unless they are already winning or really want to win the tourneys.
We know and study a lot DT flaws, and we have some solutions already planned. But we don't have dev ressources to make the changes now, so when we'll have them, we can start proposing changes for the DT.